Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Tilvi, Vithal"'
Autor:
Khostovan, Ali Ahmad, Malhotra, Sangeeta, Rhoads, James E., Sobral, David, Harish, Santosh, Tilvi, Vithal, Coughlin, Alicia, Rezaee, Saeed
We investigate the `intrinsic' H$\alpha$ EW distributions of $z \sim 0.4 - 2.2$ narrowband-selected H$\alpha$ samples from HiZELS and DAWN using a forward modeling approach. We find an EW - stellar mass anti-correlation with steepening slopes $-0.18\
Externí odkaz:
http://arxiv.org/abs/2408.00080
The slitless grism on the Nancy Grace Roman Space Telescope will enable deep near-infrared spectroscopy over a wide field of view. We demonstrate Roman's capability to detect Ly$\alpha$ galaxies at $z>7$ using a multi-position-angle (PA) observationa
Externí odkaz:
http://arxiv.org/abs/2305.01562
Autor:
Simons, Raymond C., Papovich, Casey, Momcheva, Ivelina G., Brammer, Gabriel, Estrada-Carpenter, Vicente, Finkelstein, Steven L., Gosmeyer, Catherine M., Matharu, Jasleen, Trump, Jonathan R., Backhaus, Bren E., Cheng, Yingjie, Cleri, Nikko J., Ferguson, Henry C., Finlator, Kristian, Giavalisco, Mauro, Ji, Zhiyuan, Jung, Intae, Lotz, Jennifer M., O'Brien, Rosalia, Skelton, Rosalind E., Tilvi, Vithal, Weiner, Benjamin
We present an overview of the CANDELS Lyman-a Emission At Reionization (CLEAR) survey. CLEAR is a 130 orbit program of the Hubble Space Telescope using the Wide Field Camera 3 (WFC3) IR G102 grism. CLEAR targets 12 pointings divided between the GOODS
Externí odkaz:
http://arxiv.org/abs/2303.09570
We calculate the void probability function (VPF) in simulations of Lyman-$\alpha$ emitters (LAEs) across a wide redshift range ($z=3.1,\ 4.5,\ 5.7,\ 6.6$). The VPF measures the zero-point correlation function (i.e. places devoid of galaxies) and natu
Externí odkaz:
http://arxiv.org/abs/2011.03556
Autor:
Jung, Intae, Finkelstein, Steven L., Dickinson, Mark, Hutchison, Taylor A., Larson, Rebecca L., Papovich, Casey, Pentericci, Laura, Straughn, Amber N., Guo, Yicheng, Malhotra, Sangeeta, Rhoads, James, Song, Mimi, Tilvi, Vithal, Wold, Isak
Publikováno v:
ApJ, 904, 144 (2020)
Ly$\alpha$ emission from galaxies can be utilized to characterize the ionization state in the intergalactic medium (IGM). We report our search for Ly$\alpha$ emission at $z>7$ using a comprehensive Keck/MOSFIRE near-infrared spectroscopic dataset, as
Externí odkaz:
http://arxiv.org/abs/2009.10092
Autor:
Harish, Santosh, Coughlin, Alicia, Rhoads, James E., Malhotra, Sangeeta, Finkelstein, Steven L., Stevans, Matthew, Tilvi, Vithal S., Khostovan, Ali Ahmad, Veilleux, Sylvain, Wang, Junxian, Hibon, Pascale, Zabl, Johnnes, Joshi, Bhavin, Pharo, John, Wold, Isak, Perez, Lucia A., Zheng, Zhen-Ya, Probst, Ronald, Swaters, Rob, Mobasher, Bahram, Jiang, Tianxing, Yang, Huan
We present new estimates of the luminosity function (LF) and star formation rate density (SFRD) for an H$\alpha$ selected sample at $z\sim0.62$ from the Deep And Wide Narrow-band (DAWN) survey. Our results are based on a new H$\alpha$ sample in the e
Externí odkaz:
http://arxiv.org/abs/2001.10544
Autor:
Pharo, John, Malhotra, Sangeeta, Rhoads, James E., Pirzkal, Norbert, Finkelstein, Steven L., Ryan, Russell, Cimatti, Andrea, Christensen, Lise, Hathi, Nimish, Koekemoer, Anton, Harish, Santosh, Smith, Mark, Straughn, Amber, Windhorst, Rogier, Ferreras, Ignacio, Gronwall, Caryl, Hibon, Pascale, Larson, Rebecca, O'Connell, Robert, Pasquali, Anna, Tilvi, Vithal
We present a catalog of 208 $0.3 < z < 2.1$ Emission Line Galaxies (ELG) selected from 1D slitless spectroscopy obtained using Hubble's WFC3 G102 grism, as part of the Faint Infrared Grism Survey (FIGS). We identify ELG candidates by searching for si
Externí odkaz:
http://arxiv.org/abs/1912.02261
Autor:
Hutchison, Taylor A., Papovich, Casey, Finkelstein, Steven L., Dickinson, Mark, Jung, Intae, Zitrin, Adi, Ellis, Richard, Malhotra, Sangeeta, Rhoads, James, Roberts-Borsani, Guido, Song, Mimi, Tilvi, Vithal
We present Keck/MOSFIRE $H$-band spectroscopy targeting C$\,$III] $\lambda$1907,1909 in a $z=7.5056$ galaxy previously identified via Ly$\alpha$ emission. We detect strong line emission at $1.621\pm0.002\,\mu$m with a line flux of ($2.63\pm0.52$)$\ti
Externí odkaz:
http://arxiv.org/abs/1905.08812
Autor:
Jung, Intae, Finkelstein, Steven L., Dickinson, Mark, Hutchison, Taylor A., Larson, Rebecca L., Papovich, Casey, Pentericci, Laura, Song, Mimi, Ferguson, Henry C., Guo, Yicheng, Malhotra, Sangeeta, Mobasher, Bahram, Rhoads, James, Tilvi, Vithal, Wold, Isak
Realizing the utility of Ly$\alpha$ emission to trace the evolution of the intergalactic medium (IGM) during the epoch of reionization requires deep spectroscopy across the boundary of optical and near-infrared (NIR) spectrographs at $z\sim7.2$ when
Externí odkaz:
http://arxiv.org/abs/1901.05967
Autor:
Jung, Intae, Finkelstein, Steven L., Livermore, Rachael C., Dickinson, Mark, Larson, Rebecca L., Papovich, Casey, Song, Mimi, Tilvi, Vithal, Wold, Isak
The distribution of Ly$\alpha$ emission is an presently accessible method for studying the state of the intergalactic medium (IGM) into the reionization era. We carried out deep spectroscopic observations in order to search for Ly$\alpha$ emission fr
Externí odkaz:
http://arxiv.org/abs/1803.01870