Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Quiret, Samuel"'
Autor:
Picouet, Vincent, Milliard, Bruno, Kyne, Gillian, Vibert, Didier, Schiminovich, David, Martin, Christopher, Hamden, Erika, Hoadley, Keri, Montel, Johan, Melso, Nicole, OSullivan, Donal, Evrard, Jean, Perot, Etienne, Grange, Robert, Nikzad, Shouleh, Balard, Philippe, Blanchard, Patrick, Mirc, Frederi, Bray, Nicolas, Jewell, April, Quiret, Samuel
The payload of the Faint Intergalactic Redshifted Emission Balloon (FIREBall-2), the second generation of the FIREBall instrument (PI: C. Martin, Caltech), has been calibrated and launched from the NASA Columbia Scientific Balloon Facility (CSBF) in
Externí odkaz:
http://arxiv.org/abs/2101.01920
Autor:
Poudel, Suraj, Kulkarni, Varsha P., Cashman, Frances H., Frye, Brenda, Peroux, Celine, Rahmani, Hadi, Quiret, Samuel
We present seven new abundance measurements of the elements O, C and Si at z > 4.5, doubling the existing sample of weakly depleted elements in gas-rich galaxies, in order to constrain the first ~1 billion years of cosmic metal evolution. These measu
Externí odkaz:
http://arxiv.org/abs/1910.10023
Autor:
Quiret, Samuel
L’évolution des galaxies est un sujet relativement débattu en astronomie extra-galactique, étant donné que la plupart des mécanismes responsables des propriétés observées dans les galaxies (masse, taux de formation d’étoiles, contenu en
Externí odkaz:
http://www.theses.fr/2016AIXM4735/document
Autor:
Poudel, Suraj, Kulkarni, Varsha P., Morrison, Sean, Péroux, Céline, Som, Debopam, Rahmani, Hadi, Quiret, Samuel
We present abundance measurements of elements O, C, Si and Fe for three gas-rich galaxies at z~5 using observations from the Very Large Telescope (VLT) and the Keck telescope in order to better constrain the early chemical enrichment of gas-rich gala
Externí odkaz:
http://arxiv.org/abs/1710.03315
Autor:
Zafar, Tayyaba, Møller, Palle, Péroux, Céline, Quiret, Samuel, Fynbo, Johan P. U., Ledoux, Cédric, Deharveng, Jean-Michel
Gas flows in and out of galaxies are one of the key unknowns in todays' galaxy evolution studies. Because gas flows carry mass, energy and metals, they are believed to be closely connected to the star formation history of galaxies. Most of these proc
Externí odkaz:
http://arxiv.org/abs/1611.00091
Autor:
Peroux, Celine, Rahmani, Hadi, Quiret, Samuel, Pettini, Max, Kulkarni, Varsha P., York, Donald G., Straka, Lorrie, Husemann, Bernd, Milliard, Bruno
We present new MUSE observations of quasar field Q2131-1207 with a log N(HI)=19.50+/-0.15 sub-DLA at z_abs=0.42980. We detect four galaxies at a redshift consistent with that of the absorber where only one was known before this study. Two of these ar
Externí odkaz:
http://arxiv.org/abs/1609.07389
Autor:
Rahmani, Hadi, Peroux, Celine, Turnshek, David A., Rao, Sandhya M., Quiret, Samuel, Hamilton, Timothy S., Kulkarni, Varsha P., Monier, Eric M.
We present the study of a sample of nine QSO fields, with damped-Ly-alpha (DLA) or sub-DLA systems at z~0.6, observed with the X-Shooter spectrograph at the Very Large Telescope. By suitably positioning the X-Shooter slit based on high spatial resolu
Externí odkaz:
http://arxiv.org/abs/1609.03843
Element Abundances in a Gas-rich Galaxy at z = 5: Clues to the Early Chemical Enrichment of Galaxies
Autor:
Morrison, Sean, Kulkarni, Varsha P., Som, Debopam, DeMarcy, Bryan, Quiret, Samuel, Peroux, Celine
Element abundances in high-redshift quasar absorbers offer excellent probes of the chemical enrichment of distant galaxies, and can constrain models for population III and early population II stars. Recent observations indicate that the sub-damped Ly
Externí odkaz:
http://arxiv.org/abs/1603.03492
Autor:
Peroux, Celine, Quiret, Samuel, Rahmani, Hadi, Kulkarni, Varsha P., Epinat, Benoit, Milliard, Bruno, Straka, Lorrie, York, Donald G., Rahmati, Alireza, Contini, Thierry
The use of background quasars provides a powerful tool to probe the cool gas in the circum-galactic medium of foreground galaxies. Here, we present new observations with SINFONI and X-Shooter of absorbing-galaxy candidates at z=0.7-1. We report the d
Externí odkaz:
http://arxiv.org/abs/1601.02796
Autor:
Kulkarni, Varsha P., Som, Debopam, Morrison, Sean, Peroux, Celine, Quiret, Samuel, York, Donald G.
We report Keck/ESI and VLT/UVES observations of three super-damped Lyman-alpha quasar absorbers with H I column densities log N(HI) >= 21.7 at redshifts z=2-2.5. All three absorbers show similar metallicities (-1.3 to -1.5 dex), and dust depletion of
Externí odkaz:
http://arxiv.org/abs/1510.05342