Results 11 to 20 of about 141,253 (114)

Lyα Emission Line Profiles of Extreme [O iii]- emitting Galaxies at z ≳ 2: Implications for Lyα Visibility in the Reionization Era

The Astrophysical Journal
JWST observations have recently begun delivering the first samples of Ly α velocity profile measurements at z > 6, opening a new window into the reionization process.
Mengtao Tang, Daniel P. Stark, Richard S. Ellis, Michael W. Topping, Charlotte Mason, Zhihui Li, Adèle Plat   +6 more
doaj   +2 more sources

GRB Host Galaxies: An Unbiased Sample [PDF]

, 2011
We describe the current status and recent results from our Swift/VLT legacy survey, a VLT Large Programme aimed at characterizing the host galaxies of a homogeneously selected sub-sample of Swift GRBs.
Milvang-Jensen, Bo, Fynbo, Johan Peter Uldall, Fynbo, Johan, Hjorth, Jens, Jakobsson, P., Jakobsson, Pall, Malesani, Daniele   +6 more
core   +1 more source

Neutral gas properties of high-redshift analog galaxies : 21cm observations of Lyα and LyC-emitting galaxies

, 2023
Neutral hydrogen (HI) is the most abundant baryonic element and a crucial component of galaxies. In the early universe, the interaction between neutral gas and the light produced by galaxies is thought to have given rise to cosmological reionization ...
Le Reste, Alexandra
core   +2 more sources

The luminosity function of Lyα emitters at 2.3 < z < 4.6 from integral-field spectroscopy [PDF]

, 2005
We have used Visible MultiObject Spectrograph Integral-Field Unit observations centred on a radio galaxy at z= 2.9 to search for Lyα emitters within a comoving volume of ∼104 Mpc3 .
Venemans, BP, van Breukelen, C, Jarvis, MJ, Venemans, B.P., Jarvis, M.J., Van Breukelen, C., Jarvis, Matthew   +6 more
core   +1 more source

On the Redshift Evolution of the Lyα Escape Fraction and the Dust Content of Galaxies [PDF]

, 2011
The Lyα emission line has been proven to be a powerful tool for studying evolving galaxies at the highest redshift. However, in order to use Lyα as a physical probe of galaxies, it becomes vital to know the Lyα escape fraction (f^(Lyα)_(esc ...
Göran Östlin, Schaerer, Daniel, Hakim Atek, Östlin, Göran, Daniel Schaerer, Östlin, Göran,, Atek, Hakim, Kunth, Daniel, Mas-Hesse, J. Miguel, J. Miguel Mas-Hesse, Daniel Kunth, Hayes, Matthew, Matthew Hayes   +12 more
core   +1 more source

Early assembly of the most massive galaxies [PDF]

, 2009
The current consensus is that galaxies begin as small density fluctuations in the early Universe and grow by in situ star formation and hierarchical merging(1).
Chris A. Collins, Scott T Kay (16045382), Nicola Mehrtens (16047884), Ed Lloyd-Davies, Hoyle, Ben, Hosmer, Mark, Christopher J. Miller, Ben Hoyle, Mehrtens, Nicola, Robert G. Mann, Pedro T. P. Viana, Martin Sahlén (267044), S Adam Stanford (16061237), Mark Hosmer (16070585), Robert C Nichol (16067396), John P Stott (16070582), Martin Sahlén, Sahlen, Martin, John P. Stott, Kathy Romer (4460893), Matt Hilton (6956609), Viana, Pedro T. P., Mann, Robert G., Ben Hoyle (6914513), Stott, John P., Matt Hilton, Robert G Mann (7965452), Andrew Liddle, Stanford, S. Adam, Christopher J Miller (16070591), A. Kathy Romer, Davidson, Michael, Ed Lloyd-Davies (16075100), Romer, A. Kathy, Robert C. Nichol, Andrew Liddle (16042793), Pedro T P Viana (16045379), Nichol, Robert C., Kay, Scott T., Michael J. West, Chris A Collins (16061234), Scott T. Kay, Collins, Chris A., Michael Davidson, Mark Hosmer, West, Michael J., Michael Davidson (699678), S. Adam Stanford, Michael J West (5524436), Liddle, Andrew, Nicola Mehrtens, Miller, Christopher J., Hilton, Matt, Lloyd-Davies, Ed   +53 more
core   +1 more source

LARS XIII: High Angular Resolution 21 cm H I Observations of Lyα Emitting Galaxies

, 2022
International audienceThe Lyα emission line is one of the main observables of galaxies at high redshift, but its output depends strongly on the neutral gas distribution and kinematics around the star-forming regions where UV photons are produced.
Göran Östlin, Jens Melinder, Hayes, Matthew J.,, Östlin, Göran, Alexandra Le Reste, Menacho, Veronica,, Velikonja, Nick, T. Emil Rivera-Thorsen, Johannes Puschnig, Östlin, Göran,, Menacho, Veronica, Melinder, Jens,, Daniel Kunth, Nick Velikonja, John M. Cannon, Herenz, Edmund Christian, Puschnig, Johannes, Le Reste, Alexandra,, Melinder, Jens, Rivera-Thorsen, Thøger Emil Juul,, Le Reste, Alexandra, Kunth, Daniel, Veronica Menacho, Puschnig, Johannes,, Hayes, Matthew, Rivera-Thorsen, T. Emil, Matthew Hayes, Cannon, John M., Edmund Christian Herenz   +28 more
core   +1 more source

The effect of ionizing background fluctuations on the spatial correlations of high redshift Lyα-emitting galaxies [PDF]

, 2022
We investigate the possible influence of fluctuations in the metagalactic photoionizing ultraviolet background (UVBG) on the clustering of Lyα-emitting galaxies through the modulation of the ionization level of the gas surrounding the systems.
Meiksin, Avery, Suarez, Teresita
core   +1 more source

The decoupled kinematics of high-z QSO host galaxies and their Lyα halos [PDF]

, 2022
We present a comparison of the interstellar medium traced by [C ii] (Atacama Large Millimeter/submillimeter Array), and ionized halo gas traced by Lyα (Multi Unit Spectroscopic Explorer), in and around QSO host galaxies at z ∼ 6. To date, 18 QSOs at this
Drake, A., Trebitsch, Maxime, Farina, Emanuele Paolo, Venemans, B., Novak, M., Decarli, R., Mazzucchelli, C., Neeleman, M., Bañados, Eduardo, Walter, F., Trebitsch, M., Farina, E., Novak, Mladen, Mazzucchelli, Chiara, Venemans, Bram P., Neeleman, Marcel, Bañados, E., Drake, Alyssa B., Walter, Fabian, Decarli, Roberto   +19 more
core   +1 more source

Grid of Lyα radiation transfer models for interpreting distant galaxies [PDF]

, 2011
Context. Lyα is a key diagnostic for numerous observations of distant star-forming galaxies, but detailed radiation transfer models are required for interpreting them. Aims: We provide an extensive grid of 3D radiation transfer models that simulate the
Schaerer, D, Teyssier, R, D. Schaerer, Hayes, M, M. Hayes, A. Verhamme, Verhamme, A, R. Teyssier   +7 more
core   +1 more source