Articles de revues sur le sujet « Polar Ring galaxies »

Pour voir les autres types de publications sur ce sujet consultez le lien suivant : Polar Ring galaxies.

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les 50 meilleurs articles de revues pour votre recherche sur le sujet « Polar Ring galaxies ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Parcourez les articles de revues sur diverses disciplines et organisez correctement votre bibliographie.

1

TOHLINE, JOEL E. « Polar Ring Galaxies ». Annals of the New York Academy of Sciences 596, no 1 Galactic Mode (juin 1990) : 198–206. http://dx.doi.org/10.1111/j.1749-6632.1990.tb27426.x.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
2

Combes, F. « Polar Ring Galaxies and Warps ». EAS Publications Series 20 (2006) : 97–104. http://dx.doi.org/10.1051/eas:2006054.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
3

Bournaud, F., et F. Combes. « Formation of polar ring galaxies ». Astronomy & ; Astrophysics 401, no 3 (avril 2003) : 817–33. http://dx.doi.org/10.1051/0004-6361:20030150.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
4

Combes, F., A. Moiseev et V. Reshetnikov. « Molecular content of polar-ring galaxies ». Astronomy & ; Astrophysics 554 (29 mai 2013) : A11. http://dx.doi.org/10.1051/0004-6361/201321385.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
5

Reshetnikov, V. P., M. Faúndez-Abans et M. de Oliveira-Abans. « Nuclear spectra of polar-ring galaxies ». Monthly Notices of the Royal Astronomical Society 322, no 4 (avril 2001) : 689–94. http://dx.doi.org/10.1046/j.1365-8711.2001.04134.x.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
6

Galletta, G., L. J. Sage et L. S. Sparke. « Molecular gas in polar-ring galaxies ». Monthly Notices of the Royal Astronomical Society 284, no 3 (21 janvier 1997) : 773–84. http://dx.doi.org/10.1093/mnras/284.3.773.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
7

Reshetnikov, V. P. « Photometric structure of polar-ring galaxies ». Astronomy & ; Astrophysics 416, no 3 (mars 2004) : 889–900. http://dx.doi.org/10.1051/0004-6361:20031382.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
8

Taniguchi, Yoshiaki, Katsunori Shibata et Ken-Ichi Wakamatsu. « New polar ring galaxies in rich clusters of galaxies ». Astrophysics and Space Science 118, no 1-2 (janvier 1986) : 529–30. http://dx.doi.org/10.1007/bf00651181.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
9

Reshetnikov, V., et F. Combes. « Polar-ring galaxies : the SDSS view on the symbiotic galaxies ». Monthly Notices of the Royal Astronomical Society 447, no 3 (7 janvier 2015) : 2287–94. http://dx.doi.org/10.1093/mnras/stu2604.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
10

Reshetnikov, V. P., M. Faúndez-Abans et M. de Oliveira-Abans. « Polar-ring galaxies : New candidates and statistics ». Astronomy Letters 37, no 3 (mars 2011) : 171–80. http://dx.doi.org/10.1134/s1063773711030042.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
11

Smirnov, D. V., et V. P. Reshetnikov. « Active Galactic Nuclei among Polar-Ring Galaxies ». Astronomy Letters 46, no 8 (août 2020) : 501–8. http://dx.doi.org/10.1134/s1063773720080046.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
12

Finkelman, Ido, José G. Funes S. J. et Noah Brosch. « Polar ring galaxies in the Galaxy Zoo ». Monthly Notices of the Royal Astronomical Society 422, no 3 (19 mars 2012) : 2386–98. http://dx.doi.org/10.1111/j.1365-2966.2012.20790.x.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
13

Nicholson, R. A., K. Taylor, W. B. Sparks et J. Bland. « Taurus Observations of S0 Polar Ring Galaxies ». Symposium - International Astronomical Union 127 (1987) : 415–16. http://dx.doi.org/10.1017/s0074180900185511.

Texte intégral
Résumé :
By use ot the TAURUS imaging Fabry–Perot interferometer (Taylor & Atherton 1980) we have obtained seeing limited two–dimensional velocity, line width and line flux maps of the ionised gas in two polar ring systems.
Styles APA, Harvard, Vancouver, ISO, etc.
14

Cox, A. L., et L. S. Sparke. « Radio Continuum Emission in Polar Ring Galaxies ». Astronomical Journal 128, no 5 (novembre 2004) : 2013–21. http://dx.doi.org/10.1086/424613.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
15

Lüghausen, F., B. Famaey, P. Kroupa, G. Angus, F. Combes, G. Gentile, O. Tiret et H. Zhao. « Polar ring galaxies as tests of gravity ». Monthly Notices of the Royal Astronomical Society 432, no 4 (14 mai 2013) : 2846–53. http://dx.doi.org/10.1093/mnras/stt639.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
16

Wakamatsu, Ken-Ichi. « Structure of polar ring galaxies - Shock waves in the gas of polar rings ». Astronomical Journal 105 (mai 1993) : 1745. http://dx.doi.org/10.1086/116551.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
17

Van Driel, Wim. « Dark Matter in the Polar Ring Spiral NGC 660 ». Symposium - International Astronomical Union 164 (1995) : 435. http://dx.doi.org/10.1017/s0074180900109489.

Texte intégral
Résumé :
Polar ring galaxies, where rotation velocities can be measured in two orthogonal planes, are generally considered to be ideal objects for studies of the three-dimensional distribution of dark matter in galaxies.
Styles APA, Harvard, Vancouver, ISO, etc.
18

Whitmore, Bradley C., Douglas B. McElroy, François Schweizer et Vera C. Rubin. « Distribution of Dark Matter in Polar Ring Galaxies ». Symposium - International Astronomical Union 117 (1987) : 315. http://dx.doi.org/10.1017/s0074180900150429.

Texte intégral
Résumé :
The discovery of SO galaxies with polar rings makes it possible to directly measure the gravitational potential of a galaxy in three dimensions. Schweizer, Whitmore and Rubin (1983) find a spherical potential in the case of A0136-0801. We have observed three more polar ring galaxies using the 4 meter telescope at CTIO. The following table summarizes the results for these three systems as well as A0136-0801, and figure 1 shows an example of the data.
Styles APA, Harvard, Vancouver, ISO, etc.
19

Sparke, Linda S. « Self-Gravitating Polar Ring Models ». Symposium - International Astronomical Union 117 (1987) : 314. http://dx.doi.org/10.1017/s0074180900150417.

Texte intégral
Résumé :
In a number of SO galaxies, rings of gas, dust and stars are observed to lie roughly perpendicular to the galactic disc (e.g. Whitmore, these proceedings). The material sometimes forms a fairly broad annulus, and the ring appears nearly flat. Simple estimates suggest that differential precession will destroy a polar ring in much less than a Hubble time, implying that the observed structures have been formed only recently. It is then surprising that some of them are so regular, unless something acts to prevent their disruption.
Styles APA, Harvard, Vancouver, ISO, etc.
20

van Driel, W., F. Combes, M. Arnaboldi et L. S. Sparke. « A neutral hydrogen survey of polar ring galaxies ». Astronomy & ; Astrophysics 386, no 1 (avril 2002) : 140–48. http://dx.doi.org/10.1051/0004-6361:20020227.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
21

Van Driel, W., M. Arnaboldi, F. Combes et L. S. Sparke. « An HI Line Survey of Polar Ring Galaxies ». Symposium - International Astronomical Union 186 (1999) : 136. http://dx.doi.org/10.1017/s0074180900112410.

Texte intégral
Résumé :
We have observed a total of 74 polar ring galaxies (PRGs), PRG candidates and related objects at 3 radio observatories: Green Bank (Richter et al. 1994, AJ, 107, 1), Effelsberg (Huchtmeier 1997, A&A, 319, 401) and Nançay (van Driel et al. 1997, A&AS, in press; van Driel et al. 1998, A&A, in prep.). Our main aim is to identify systems suitable for HI synthesis mapping, crucial for an understanding of their dynamical state. Most objects were selected using one or more of the following 3 (<8000 km/s), or blue magnitude brighter than 15.5 mag, or kinematically confirmed PRG or good PRG candidate. A total of 62 objects were detected, 39 of which with more than one telescope.
Styles APA, Harvard, Vancouver, ISO, etc.
22

van Driel, W., M. Arnaboldi, F. Combes et L. S. Sparke. « A neutral hydrogen survey of polar ring galaxies ». Astronomy and Astrophysics Supplement Series 141, no 3 (février 2000) : 385–408. http://dx.doi.org/10.1051/aas:2000321.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
23

Arnaboldi, M., K. C. Freeman, P. D. Sackett, L. S. Sparke et M. Capaccioli. « Dust and infrared imaging of polar ring galaxies ». Planetary and Space Science 43, no 10-11 (octobre 1995) : 1377–88. http://dx.doi.org/10.1016/0032-0633(95)00053-8.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
24

Nishimura, Minoru, Kazuya Matsubayashi, Takashi Murayama et Yoshiaki Taniguchi. « A New Polar Ring Galaxy Discovered in the COSMOS Field ». Publications of the Astronomical Society of the Pacific 134, no 1039 (1 septembre 2022) : 094105. http://dx.doi.org/10.1088/1538-3873/ac8d2e.

Texte intégral
Résumé :
Abstract In order to understand the formation and evolution of galaxies fully, it is important to study their three-dimensional gravitational potential for a large sample of galaxies. Since polar-ring galaxies (PRGs) provide useful laboratories for this investigation, we have started our detailed study of a sample of known PRGs by using the data set obtained by the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). During the course of this study, we have discovered a new PRG, identified as SDSS J095351.58+012036.1. Its photometric redshift is estimated as z ∼ 0.2. The polar ring structure in this PRG appears to be almost perpendicular to the disk of its host galaxy without any disturbed features. Therefore, this PRG will provide us with useful information on the formation of such an undisturbed polar structure. We discuss its photometric properties in detail.
Styles APA, Harvard, Vancouver, ISO, etc.
25

Combes, F. « Comparison with External Galaxies Dynamics ». Symposium - International Astronomical Union 169 (1996) : 133–43. http://dx.doi.org/10.1017/s0074180900229616.

Texte intégral
Résumé :
Many features of the Milky Way appear weird or unique, because of the peculiar point of view. However the same features are observed more easily and clearly in nearby galaxies. The Milky Way appears to cumulate many dynamical features, such as a bar, a nuclear disk, a perpendicular nuclear bar (?), lopsidedness, an inner ring (molecular ring at 5kpc), a peanut-shape bulge, a warp, and a polar ring. By comparison with external galaxies, and also results from N-body simulations, we can infer the most probable bar angular velocity and length, and interpret the ring features.
Styles APA, Harvard, Vancouver, ISO, etc.
26

Reshetnikov, V. P., et V. A. Yakovleva. « The Polar-Ring Galaxies NGC 2685 and NGC 3808B (W 300) ». International Astronomical Union Colloquium 124 (1990) : 231–44. http://dx.doi.org/10.1017/s0252921100005157.

Texte intégral
Résumé :
Polar-ring galaxies (PRG) are among the most interesting examples of interaction between galaxies. A PRG is a galaxy with an elongated main body surrounded by a ring (or a disk) of stars, gas, and dust rotating in a near-polar plane (Schweizer, Whitmore, and Rubin, 1983). Accretion of matter by a massive lenticular galaxy from either intergalactic medium or a companion galaxy is usually considered as an explanation of the observed structure of PRG. In the latter case there are two possibilities: (1) capture and merging of a neighbor galaxy, and (2) accretion of mass from a companion galaxy during a close encounter. Two PRG formation scenarios just mentioned are illustrated here by the results of our observations of the peculiar galaxies NGC 2685 and NGC 3808B.
Styles APA, Harvard, Vancouver, ISO, etc.
27

Savchenko, S. S., et V. P. Reshetnikov. « Spatial environment of polar-ring galaxies from the SDSS ». Astronomy Letters 43, no 3 (mars 2017) : 146–51. http://dx.doi.org/10.1134/s1063773717020050.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
28

Arnaboldi, Magda, Enrica Iodice, Frederick Bournaud, Francoise Combes, Linda S. Sparke, Wim Van Driel et Massimo Capaccioli. « Polar Ring Galaxies and the Tully-Fisher relation : implications for the dark halo shape ». Symposium - International Astronomical Union 220 (2004) : 405–10. http://dx.doi.org/10.1017/s007418090018372x.

Texte intégral
Résumé :
We have investigated the Tully-Fisher relation for Polar Ring Galaxies (PRGs), based on near infrared, optical and Hi data available for a sample of these peculiar objects. The total K-band luminosity, which mainly comes from the central host galaxy, and the measured Hi linewidth at 20% of the peak line flux density, which traces the potential in the polar plane, place most polar rings of the sample far from the Tully-Fisher relation defined for spiral galaxies, with many PRGs showing larger Hi line-widths than expected for the observed K band luminosity. This result is confirmed by a larger sample of objects, based on B-band data. This observational evidence may be related to the dark halo shape and orientation in these systems, which we study by numerical modeling of PRG formation and dynamics: the larger rotation velocities observed in PRGs can be explained by a flattened polar halo, aligned with the polar ring.
Styles APA, Harvard, Vancouver, ISO, etc.
29

Iodice, E., M. Arnaboldi, R. Saglia, L. Sparke et O. Gerhard. « New Kinematics for the Central Spheroid in Polar Disk Galaxy NGC4650A ». Proceedings of the International Astronomical Union 2, S235 (août 2006) : 207. http://dx.doi.org/10.1017/s1743921306006132.

Texte intégral
Résumé :
AbstractWe have obtained high angular resolution spectra on the photometric axes of the stellar spheroid in the polar disk galaxy NGC4650A. We discuss the main implications by the new kinematics on the previous mass models for NGC4650A and on current formation scenarios of Polar Ring Galaxies (PRGs).
Styles APA, Harvard, Vancouver, ISO, etc.
30

Shalyapina, Liliya, Gulnara Karataeva, Olga Merkulova, Valeriya Yakovleva et Nina Yablokova. « Investigation of the Stellar Population of Several Polar Ring Galaxies ». Galaxies 4, no 1 (5 janvier 2016) : 2. http://dx.doi.org/10.3390/galaxies4010002.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
31

Whitmore, Bradley C., Ray A. Lucas, Douglas B. McElroy, Thomas Y. Steiman-Cameron, Penny D. Sackett et Rob P. Olling. « New observations and a photographic atlas of polar-ring galaxies ». Astronomical Journal 100 (novembre 1990) : 1489. http://dx.doi.org/10.1086/115614.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
32

Bekki, Kenji. « Formation of Polar Ring S0 Galaxies in Dissipative Galaxy Mergers ». Astrophysical Journal 490, no 1 (20 novembre 1997) : L37—L40. http://dx.doi.org/10.1086/311008.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
33

Whitmore, Bradley C., Douglas B. McElroy et Francois Schweizer. « The shape of the dark halo in polar-ring galaxies ». Astrophysical Journal 314 (mars 1987) : 439. http://dx.doi.org/10.1086/165077.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
34

Yakovleva, V. A., V. A. Hagen-Thorn, G. M. Karataeva et L. V. Shaljapina. « Photometric and spectral investigation of candidates for polar-ring galaxies ». Astronomical & ; Astrophysical Transactions 20, no 1 (juin 2001) : 119–22. http://dx.doi.org/10.1080/10556790108208197.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
35

Shalyapina, L. V., O. A. Merkulova, V. A. Yakovleva et E. V. Volkov. « 2D spectroscopy of candidate polar-ring galaxies : I. The pair of galaxies UGC 5600/09 ». Astronomy Letters 33, no 8 (août 2007) : 520–30. http://dx.doi.org/10.1134/s1063773707080038.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
36

Egorov, Oleg V., et Alexei V. Moiseev. « Metallicity and ionization state of the gas in polar-ring galaxies ». Monthly Notices of the Royal Astronomical Society 486, no 3 (18 avril 2019) : 4186–97. http://dx.doi.org/10.1093/mnras/stz1112.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
37

Hagen-Thorn, V. A., L. V. Shalyapina, G. M. Karataeva et V. A. Yakovleva. « Observational study of UGC 4892—a candidate for polar-ring galaxies ». Astronomy Letters 29, no 3 (mars 2003) : 133–41. http://dx.doi.org/10.1134/1.1558151.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
38

Galletta, G. « Counterrotation and Barred Galaxies ». International Astronomical Union Colloquium 157 (1996) : 429–38. http://dx.doi.org/10.1017/s0252921100050168.

Texte intégral
Résumé :
AbstractIn this review we discuss the phenomenon of counterrotation, observed in ~40 apparently normal galaxies where gas or stars are rotating in a direction opposite to the main stellar body. It appears in all morphological types, from ellipticals to spirals or irregulars.The problem of the origin and the evolution of counterrotation is discussed, in the wider frame of the galaxies accreting matter from their environment (e.g., minor-axis dust-lane ellipticals or polar-ring S0s). Various sources of matter appear to be candidates for the production of the counterrotation.Due to the tendency of the bar potential to populate particular families of orbits, some cases of counterrotation found in barred galaxies are interpreted as intrinsic to barred galaxies.
Styles APA, Harvard, Vancouver, ISO, etc.
39

Reshetnikov, Vladimir P., et Aleksandr V. Mosenkov. « New candidates to polar-ring galaxies from the Sloan Digital Sky Survey ». Monthly Notices of the Royal Astronomical Society 483, no 2 (27 novembre 2018) : 1470–80. http://dx.doi.org/10.1093/mnras/sty3209.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
40

Kemp, S. N., J. A. Pérez Grana, J. Meaburn et Eduardo de la Fuente. « Lenticular galaxies in the process of evolution ». Proceedings of the International Astronomical Union 3, S245 (juillet 2007) : 135–36. http://dx.doi.org/10.1017/s1743921308017481.

Texte intégral
Résumé :
AbstractWe present images of a number of lenticular galaxies which appear to be undergoing evolutionary processes such as ram-pressure stripping or gravitational interactions, or possess features indicative of some evolutionary process in the recent past, such as fossil spiral arms, a polar ring-like structure, or a warped disk with box-peanut bulge. All the galaxies were originally identified on digitally co-added photographic plates or films from the UK Schmidt Telescope, showing that such material is still useful in spite of the modern digital surveys available. In some cases CCD follow up is presented.
Styles APA, Harvard, Vancouver, ISO, etc.
41

Merkulova, O. A., L. V. Shalyapina et V. A. Yakovleva. « 2-D spectroscopy of polar-ring galaxies candidates. II. The peculiar galaxies NGC 2748 and UGC 4385 ». Astronomy Letters 35, no 9 (septembre 2009) : 587–98. http://dx.doi.org/10.1134/s1063773709090023.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
42

Whitmore, Bradley, et François Schweizer. « AM2020–5050 : an Elliptical Galaxy with an Outer Ring ». Symposium - International Astronomical Union 127 (1987) : 413–14. http://dx.doi.org/10.1017/s007418090018550x.

Texte intégral
Résumé :
Photometric and spectroscopic observations show that the inner component of AM2020—5050 is an elliptical galaxy, unlike other polar-ring galaxies which have an SO disk at the center. A comparison of the central velocity dispersion with the rotational velocity in the ring suggests the presence of a nearly spherical gravitational potential. The inner component has a rapidly rotating core with rotational velocities at 3″ substantially higher than at 8″. Although the optical ring is quite narrow, Hα emission is observed all the way through the center of the galaxy, indicating the presence of an extended gaseous disk.
Styles APA, Harvard, Vancouver, ISO, etc.
43

Macciò, Andrea V., Ben Moore et Joachim Stadel. « The Origin of Polar Ring Galaxies : Evidence for Galaxy Formation by Cold Accretion ». Astrophysical Journal 636, no 1 (8 décembre 2005) : L25—L28. http://dx.doi.org/10.1086/499778.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
44

Karataeva, G. M., et A. N. Kuznetsov. « Observational study of the candidate polar-ring galaxies NGC 304 and NGC 7625 ». Astronomy Letters 34, no 9 (septembre 2008) : 608–19. http://dx.doi.org/10.1134/s1063773708090041.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
45

Ordenes-Briceño, Yasna, Iskren Y. Georgiev, Thomas H. Puzia, Paul Goudfrooij et Magda Arnaboldi. « Compact stellar systems in the polar ring galaxies NGC 4650A and NGC 3808B : Clues to polar disk formation ». Astronomy & ; Astrophysics 585 (janvier 2016) : A156. http://dx.doi.org/10.1051/0004-6361/201527025.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
46

Knapen, Johan H. « Galactic rings and secular evolution in barred galaxies ». Proceedings of the International Astronomical Union 10, H16 (août 2012) : 326. http://dx.doi.org/10.1017/s1743921314005900.

Texte intégral
Résumé :
AbstractRings are common in galaxies. Several kinds of rings are known: collisional, polar, and resonance rings, of which the latter is by far most common. Resonance rings are prime tracers of the underlying dynamical structure of disk galaxies, in particular of orbital resonances and of manifolds. Rings are also indicators of angular momentum transport, and this is a key factor in secular evolution (see the various reviews in Falcón-Barroso & Knapen 2012).Resonance rings come in three flavours, primarily defined by their size, namely nuclear, inner, and outer rings. From studies like those of Buta (1995), Knapen (2005) and Comerón et al. (2010, 2013) we know that the radii of nuclear rings range from a few tens of parsec to some 3.5 kpc, while inner rings and outer rings have typical radii of 1.2 and 2.5–3 times the length of the bar. Many host galaxies of rings are barred, but so are most galaxies in general. Some 20% of all rings occur in non-barred galaxies, which implies that rings do not, or hardly, occur preferentially in barred galaxies (Knapen 2005, Comerón et al. 2010, 2013). In most non-barred ringed galaxies an oval, a past interaction, or even a prominent spiral pattern lies at the dynamical origin of the ring, but this needs additional scrutiny.From an inventory of all known nuclear rings, Comerón et al. (2010) reach the following conclusions. Star-forming nuclear rings occur in 20 ± 2% of disk galaxies with −3 < T < 7; 18/96 occur in disk galaxies without a bar (19%); they are found in S0 to Sd galaxies, peaking in types Sab Sb; when nuclear rings occur in barred galaxies, the ring radius is limited to one quarter of the bar radius; and stronger bars host smaller rings (cf. Knapen 2005).We are now using the Spitzer Survey of Spiral Structure in Galaxies (S4G; Sheth et al. 2010) to expand our survey to inner and outer rings (Comerón et al. 2013). We aim to study the relations between ring and host properties – as we did before for nuclear rings. We will use the S4G sample size and image depth to reach further insight into the secular evolution of galaxies by measuring structural properties of rings, as well as those of components like bars and disks. We will then be able to tackle outstanding questions such as the origin of rings in non-barred galaxies, and how exactly ring properties are determined by the bar.
Styles APA, Harvard, Vancouver, ISO, etc.
47

Reshetnikov, V. P., et R. J. Dettmar. « HUDF 1619—A candidate for polar-ring galaxies in the Hubble Ultra Deep Field ». Astronomy Letters 33, no 4 (avril 2007) : 222–26. http://dx.doi.org/10.1134/s1063773707040020.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
48

Iodice, E., M. Arnaboldi, F. Bournaud, F. Combes, L. S. Sparke, W. van Driel et M. Capaccioli. « Polar Ring Galaxies and the Tully‐Fisher Relation : Implications for the Dark Halo Shape ». Astrophysical Journal 585, no 2 (10 mars 2003) : 730–38. http://dx.doi.org/10.1086/346107.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
49

Moiseev, Alexei V., Ksenia I. Smirnova, Aleksandrina A. Smirnova et Vladimir P. Reshetnikov. « A new catalogue of polar-ring galaxies selected from the Sloan Digital Sky Survey★ ». Monthly Notices of the Royal Astronomical Society 418, no 1 (12 septembre 2011) : 244–57. http://dx.doi.org/10.1111/j.1365-2966.2011.19479.x.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
50

Iodice, E., M. Arnaboldi, L. S. Sparke, J. S. Gallagher et K. C. Freeman. « Near-Infrared photometry in the J, H and ${\it Kn}$ bands for Polar Ring Galaxies ». Astronomy & ; Astrophysics 391, no 1 (29 juillet 2002) : 103–15. http://dx.doi.org/10.1051/0004-6361:20020738.

Texte intégral
Styles APA, Harvard, Vancouver, ISO, etc.
Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!

Vers la bibliographie