Journal articles on the topic 'Foresta Lyman-alpha'

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1

Hogan, Craig J., and Ray J. Weymann. "Lyman-alpha emission from the Lyman-alpha forest." Monthly Notices of the Royal Astronomical Society 225, no. 1 (March 1987): 1P—5P. http://dx.doi.org/10.1093/mnras/225.1.1p.

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2

Baur, Julien, Nathalie Palanque-Delabrouille, Christophe Yèche, Christophe Magneville, and Matteo Viel. "Lyman-alpha forests cool warm dark matter." Journal of Cosmology and Astroparticle Physics 2016, no. 08 (August 8, 2016): 012. http://dx.doi.org/10.1088/1475-7516/2016/08/012.

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3

Evslin, Jarah. "Isolating the Lyman alpha forest BAO anomaly." Journal of Cosmology and Astroparticle Physics 2017, no. 04 (April 13, 2017): 024. http://dx.doi.org/10.1088/1475-7516/2017/04/024.

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4

Ikeuchi, Satoru, and Edwin L. Turner. "Gravitational lensing and the Lyman-alpha forest." Astrophysical Journal 375 (July 1991): 499. http://dx.doi.org/10.1086/170212.

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5

Crotts, Arlin P. S. "Spatial structure in the Lyman-alpha forest." Astrophysical Journal 336 (January 1989): 550. http://dx.doi.org/10.1086/167034.

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6

Crotts, A. P. S. "Are voids found in the Lyman-alpha forest?" Monthly Notices of the Royal Astronomical Society 228, no. 1 (September 1, 1987): 41P—45P. http://dx.doi.org/10.1093/mnras/228.1.41p.

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7

Norman, Michael L., Pascal Paschos, and Robert Harkness. "Baryon acoustic oscillations in the Lyman alpha forest." Journal of Physics: Conference Series 180 (July 1, 2009): 012021. http://dx.doi.org/10.1088/1742-6596/180/1/012021.

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8

Croft, Rupert A. C., Alessandro Romeo, and R. Benton Metcalf. "Weak lensing of the Lyman $\boldsymbol {\alpha }$ forest." Monthly Notices of the Royal Astronomical Society 477, no. 2 (March 14, 2018): 1814–21. http://dx.doi.org/10.1093/mnras/sty650.

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9

Ostriker, Jeremiah P., Stanislaw Bajtlik, and Robert C. Duncan. "Clustering and voids in the Lyman-alpha forest." Astrophysical Journal 327 (April 1988): L35. http://dx.doi.org/10.1086/185135.

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10

Khare, P., R. Srianand, D. G. York, R. Green, D. Welty, K. L. Huang, and J. Bechtold. "The Lyman alpha forest towards B2 1225 + 317." Monthly Notices of the Royal Astronomical Society 285, no. 1 (February 11, 1997): 167–80. http://dx.doi.org/10.1093/mnras/285.1.167.

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11

Crotts, Arlin P. S. "Are Voids Present in the Lyman-Alpha Forest?" Symposium - International Astronomical Union 130 (1988): 569. http://dx.doi.org/10.1017/s0074180900136976.

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SummaryIf voids like those seen in the low z galaxy distribution existed in the H I distribution at z ≈ 2, then high quality QSO spectra, with many Ly-α forest lines per unit z, could be used to discern the voids from the usual random fluctuations in observed number density of lines (≡ n). Several such spectra have been obtained, and these show evidence for gaps in the Ly-α distribution on scales of 20 to 50 h−1Mpc (comoving coordinates, with h = H0/66.7 km s−1Mpc−1, assuming q0 = 0.1). These results are summarized in the table below. All QSO spectra with a line-of-sight n of Ly-α lines n > 80 per unit z and total number of lines N > 40 known to the author are included (except that of PKS 2000-330 [c.f. Carswell and Rees 1987], which is broken into five separate segments of Ly-α forest by gaps in the data and a broad absorption line). Excluded are portions of these spectra where n falls more than 25% below the mean due to instrumental bias. For each of these the distribution of gaps between nearest-neighbor Ly-α redshifts is computed as a function of gap size. If the distribution of redshifts were Poisson, the distribution of gaps should be a decreasing exponential function of gap size. For the two best spectra, large deviations from an exponential are found in the range of 20 to 50 h−1Mpc (in the other four cases, it should be noted that a large number of gaps of such sizes are still expected from Poisson fluctuations). The probability that such deviations are statistically consistent with an exponential distribution is shown in the fifth column of the table.
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12

Slosar, Anže, Shirley Ho, Martin White, and Thibaut Louis. "The acoustic peak in the Lyman alpha forest." Journal of Cosmology and Astroparticle Physics 2009, no. 10 (October 23, 2009): 019. http://dx.doi.org/10.1088/1475-7516/2009/10/019.

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13

Demiański, M. I., A. G. Doroshkevich, and T. I. Larchenkova. "The Lyman-Alpha Forest and the Ultraviolet Background." Astronomy Letters 48, no. 7 (July 2022): 361–69. http://dx.doi.org/10.1134/s1063773722070040.

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14

Pérez-Ràfols, Ignasi, Andreu Font-Ribera, Jordi Miralda-Escudé, Michael Blomqvist, Simeon Bird, Nicolás Busca, Hélion du Mas des Bourboux, et al. "The SDSS-DR12 large-scale cross-correlation of damped Lyman alpha systems with the Lyman alpha forest." Monthly Notices of the Royal Astronomical Society 473, no. 3 (September 28, 2017): 3019–38. http://dx.doi.org/10.1093/mnras/stx2525.

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15

Pedersen, Christian, Andreu Font-Ribera, Thomas D. Kitching, Patrick McDonald, Simeon Bird, Anže Slosar, Keir K. Rogers, and Andrew Pontzen. "Massive neutrinos and degeneracies in Lyman-alpha forest simulations." Journal of Cosmology and Astroparticle Physics 2020, no. 04 (April 17, 2020): 025. http://dx.doi.org/10.1088/1475-7516/2020/04/025.

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16

Levshakov, Sergei A., and Wilhelm H. Kegel. "The Gunn—Peterson effect and the Lyman alpha forest." Monthly Notices of the Royal Astronomical Society 301, no. 2 (December 1998): 323–27. http://dx.doi.org/10.1046/j.1365-8711.1998.01722.x.

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17

Font-Ribera, Andreu, Jordi Miralda-Escudé, Eduard Arnau, Bill Carithers, Khee-Gan Lee, Pasquier Noterdaeme, Isabelle Pâris, et al. "The large-scale cross-correlation of Damped Lyman alpha systems with the Lyman alpha forest: first measurements from BOSS." Journal of Cosmology and Astroparticle Physics 2012, no. 11 (November 28, 2012): 059. http://dx.doi.org/10.1088/1475-7516/2012/11/059.

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18

Miralda-Escude, J., and M. J. Rees. "Tests for the minihalo model of the Lyman alpha forest." Monthly Notices of the Royal Astronomical Society 260, no. 3 (February 1, 1993): 617–24. http://dx.doi.org/10.1093/mnras/260.3.617.

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19

Levshakov, S. A., and W. H. Kegel. "Uncertainties in the interpretation of the Lyman alpha forest lines." Monthly Notices of the Royal Astronomical Society 278, no. 2 (January 11, 1996): 497–505. http://dx.doi.org/10.1093/mnras/278.2.497.

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20

Palanque-Delabrouille, Nathalie, Christophe Yèche, Julien Baur, Christophe Magneville, Graziano Rossi, Julien Lesgourgues, Arnaud Borde, et al. "Neutrino masses and cosmology with Lyman-alpha forest power spectrum." Journal of Cosmology and Astroparticle Physics 2015, no. 11 (November 6, 2015): 011. http://dx.doi.org/10.1088/1475-7516/2015/11/011.

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21

Arinyo-i-Prats, Andreu, Jordi Miralda-Escudé, Matteo Viel, and Renyue Cen. "The non-linear power spectrum of the Lyman alpha forest." Journal of Cosmology and Astroparticle Physics 2015, no. 12 (December 10, 2015): 017. http://dx.doi.org/10.1088/1475-7516/2015/12/017.

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22

Rauch, Michael. "THE LYMAN ALPHA FOREST IN THE SPECTRA OF QUASISTELLAR OBJECTS." Annual Review of Astronomy and Astrophysics 36, no. 1 (September 1998): 267–316. http://dx.doi.org/10.1146/annurev.astro.36.1.267.

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23

Trevese, Dario, Emanuele Giallongo, and Luca Camurani. "The redshift evolution of the Lyman-alpha forest - Blending effects." Astrophysical Journal 398 (October 1992): 491. http://dx.doi.org/10.1086/171871.

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24

Viel, Matteo. "The Lyman-$\alpha$ forest as a probe of fundamental physics." Proceedings of the International Astronomical Union 1, no. C199 (March 2005): 255–60. http://dx.doi.org/10.1017/s1743921305002681.

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25

Chiba, M., and B. B. Nath. "On the Origin of Metallicity in Lyman-Alpha Forest Systems." Symposium - International Astronomical Union 187 (2002): 123–27. http://dx.doi.org/10.1017/s007418090011383x.

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Several recent observations indicate that even the low H I column density Lyα absorption lines may not be primordial, as they were previously thought to be. High-resolution observations using the Keck telescope (Cowie et al. 1995; Tytler et al 1995.; Songaila & Cowie 1996) have revealed that a large fraction of Lyα absorption lines with H I column density as low as NHI ~ 1014 cm−2 at redshift z ~ 3 are associated with metal lines (C IV). This fraction, hereafter denoted as fm, is estimated as 0.5-0.75. On the other hand, there is an indication that at low z a large fraction of Lyα absorption lines are directly associated with halos of visible galaxies. This fraction is hereafter denoted as fg. Lanzetta et al. (1995, hereafter LBTW) claimed fg ~ 0.6 at z ≲ 1 (see also Bowen, Pettini & Boyle 1997).
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26

García, Thorsten Tepper, and Uta Fritze-von Alvensleben. "The Impact of Stochastic Attenuation on Photometric Redshift Estimates." Proceedings of the International Astronomical Union 2, S235 (August 2006): 438–39. http://dx.doi.org/10.1017/s174392130601060x.

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AbstractWe model the stochastic attenuation by HI absorbers in the intergalactic medium (IGM), such as Lyα Forest clouds, and absorbers associated with galaxies, such as Lyman Limit systems (LLS) and Damped Lyman Alpha absorbers (DLAs), and compute an ensemble of 4 · 103 attenuated Spectral Energy Distributions (SEDs) in the Johnson system for the spectrum of a galaxy with a constant star formation rate (CSFR). Using these, we asses the impact of the stochastic attenuation on the estimates of photometric redshifts for this type of galaxy by comparison with model SEDs that include only a mean attenuation.
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27

Rogers, Keir K., Hiranya V. Peiris, Andrew Pontzen, Simeon Bird, Licia Verde, and Andreu Font-Ribera. "Bayesian emulator optimisation for cosmology: application to the Lyman-alpha forest." Journal of Cosmology and Astroparticle Physics 2019, no. 02 (February 14, 2019): 031. http://dx.doi.org/10.1088/1475-7516/2019/02/031.

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28

Giallongo, Emanuele, Stefano Cristiani, Adriano Fontana, and Dario Trevese. "The Lyman-Alpha Forest of PKS 2126-158 at High Resolution." Astrophysical Journal 416 (October 1993): 137. http://dx.doi.org/10.1086/173220.

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29

Mandelbaum, R., P. McDonald, U. Seljak, and R. Cen. "Precision cosmology from the Lyman alpha forest: power spectrum and bispectrum." Monthly Notices of the Royal Astronomical Society 344, no. 3 (September 2003): 776–88. http://dx.doi.org/10.1046/j.1365-8711.2003.06859.x.

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30

Liske, J., J. K. Webb, and R. F. Carswell. "Large-scale structure in the Lyman-alpha forest: a new technique." Monthly Notices of the Royal Astronomical Society 301, no. 3 (December 1998): 787–96. http://dx.doi.org/10.1046/j.1365-8711.1998.02048.x.

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31

Outram, P. J., F. H. Chaffee, and R. F. Carswell. "The Lyman-alpha forest and heavy-element systems of GB1759+7539." Monthly Notices of the Royal Astronomical Society 310, no. 2 (December 1, 1999): 289–312. http://dx.doi.org/10.1046/j.1365-8711.1999.02870.x.

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32

Cowie, Lennox L., Antoinette Songaila, Tae-Sun Kim, and Esther M. Hu. "The metallicity and internal structure of the Lyman-alpha forest clouds." Astronomical Journal 109 (April 1995): 1522. http://dx.doi.org/10.1086/117381.

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33

Charlton, Jane C., Edwin E. Salpeter, and Suzanne M. Linder. "Competition between pressure and gravity confinement in Lyman Alpha forest observations." Astrophysical Journal 430 (July 1994): L29. http://dx.doi.org/10.1086/187430.

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34

Gnedin, Nickolay Y., and Andrew J. S. Hamilton. "Matter power spectrum from the Lyman-alpha forest: myth or reality?" Monthly Notices of the Royal Astronomical Society 334, no. 1 (July 2002): 107–16. http://dx.doi.org/10.1046/j.1365-8711.2002.05490.x.

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35

Kulkarni, Varsha P., and S. Michael Fall. "Implications of Nonthermal Motions for Statistics of Lyman-Alpha Forest Clouds." Astrophysical Journal 453 (November 1995): 65. http://dx.doi.org/10.1086/176370.

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36

Demiański, M. I., A. G. Doroshkevich, and T. I. Larchenkova. "The Lyman-Alpha Forest as an Indicator of Large-Scale Structure Elements." Astronomy Letters 46, no. 6 (June 2020): 359–69. http://dx.doi.org/10.1134/s106377372006002x.

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37

Lu, Limin, and Lin Zuo. "Toward unbiased determination of the redshift evolution of Lyman-alpha forest clouds." Astrophysical Journal 426 (May 1994): 502. http://dx.doi.org/10.1086/174086.

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38

Fechner, C., and D. Reimers. "The HeII Lyman alpha forest and the thermal state of the IGM." Astronomy & Astrophysics 463, no. 1 (November 20, 2006): 69–78. http://dx.doi.org/10.1051/0004-6361:20066566.

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39

Songaila, Antoinette, and Lennox L. Cowie. "Metal enrichment and Ionization Balance in the Lyman Alpha Forest at Z = 3." Astronomical Journal 112 (August 1996): 335. http://dx.doi.org/10.1086/118018.

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40

Meiksin, Avery. "The structure and evolution of Lyman-alpha forest clouds in the minihalo model." Astrophysical Journal 431 (August 1994): 109. http://dx.doi.org/10.1086/174471.

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41

Hu, Esther M., Tae-Sun Kim, Lennox L. Cowie, Antoinette Songaila, and Michael Rauch. "The Distribution of Column Densities and B Values in the Lyman-Alpha Forest." Astronomical Journal 110 (October 1995): 1526. http://dx.doi.org/10.1086/117625.

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42

Tyson, Neil D. "On the possibility of gas-rich dwarf galaxies in the Lyman-alpha forest." Astrophysical Journal 329 (June 1988): L57. http://dx.doi.org/10.1086/185176.

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43

Villaescusa-Navarro, F., M. Vogelsberger, M. Viel, and A. Loeb. "Neutrino signatures on the high-transmission regions of the Lyman $\boldsymbol {\alpha }$ forest." Monthly Notices of the Royal Astronomical Society 431, no. 4 (April 11, 2013): 3670–77. http://dx.doi.org/10.1093/mnras/stt452.

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44

Cisewski, Jessi, Rupert A. C. Croft, Peter E. Freeman, Christopher R. Genovese, Nishikanta Khandai, Melih Ozbek, and Larry Wasserman. "Non-parametric 3D map of the intergalactic medium using the Lyman-alpha forest." Monthly Notices of the Royal Astronomical Society 440, no. 3 (April 9, 2014): 2599–609. http://dx.doi.org/10.1093/mnras/stu475.

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45

Krall, Rebecca, Francis-Yan Cyr-Racine, and Cora Dvorkin. "Wandering in the Lyman-alpha forest: a study of dark matter-dark radiation interactions." Journal of Cosmology and Astroparticle Physics 2017, no. 09 (September 4, 2017): 003. http://dx.doi.org/10.1088/1475-7516/2017/09/003.

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46

Rogers, Keir K., Simeon Bird, Hiranya V. Peiris, Andrew Pontzen, Andreu Font-Ribera, and Boris Leistedt. "Correlations in the three-dimensional Lyman-alpha forest contaminated by high column density absorbers." Monthly Notices of the Royal Astronomical Society 476, no. 3 (March 7, 2018): 3716–28. http://dx.doi.org/10.1093/mnras/sty603.

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47

Cen, Renyue, Jordi Miralda-Escude, Jeremiah P. Ostriker, and Michael Rauch. "Gravitational collapse of small-scale structure as the origin of the Lyman-alpha forest." Astrophysical Journal 437 (December 1994): L9. http://dx.doi.org/10.1086/187670.

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48

Bechtold, Jill. "The Lyman-Alpha forest near 34 quasi-stellar objects with Z greater than 2.6." Astrophysical Journal Supplement Series 91 (March 1994): 1. http://dx.doi.org/10.1086/191937.

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49

Gaztanaga, E., and R. A. C. Croft. "Predictions for the clustering properties of the Lyman-alpha forest -- I. One-point statistics." Monthly Notices of the Royal Astronomical Society 309, no. 4 (November 11, 1999): 885–904. http://dx.doi.org/10.1046/j.1365-8711.1999.02880.x.

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50

Bolton, James S., Martin G. Haehnelt, Matteo Viel, and Volker Springel. "Constraints on the meta-galactic hydrogen ionisation rate from the Lyman-$\alpha$ forest opacity." Proceedings of the International Astronomical Union 1, no. C199 (March 2005): 219–24. http://dx.doi.org/10.1017/s1743921305002620.

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