Results 41 to 50 of about 252,176 (198)
Star formation indicators and line equivalent width in Lyα galaxies [PDF]
, 2009 The equivalent width (EW) of the Lyα line is directly related to the ratio of star formation rates determined from Lyα flux and UV flux density [SFR(Lyα)/SFR(UV)].
M. Dijkstra, E. Westra
semanticscholar +1 more source
High-redshift Ly alpha emitters with a large equivalent width: Properties of i-dropout galaxies with an NB921-band depression in the Subaru Deep Field [PDF]
, 2007 We report new follow-up spectroscopy of i-dropout galaxies with an NB921-band depression found in the Subaru Deep Field. The NB921-depressed i-dropout selection method is expected to select galaxies with large equivalent width Ly alpha emission over a ...
Ajiki, Masaru +13 more
core +2 more sources
NICMOS imaging search for high-redshift damped Lyα galaxies [PDF]
, 2001 We are engaged in a programme of imaging with the STIS and NICMOS (NIC2) instruments aboard the Hubble Space Telescope (HST), to search for the galaxy counterparts of 18 high-redshift z>1.75 damped Lyα absorption lines and five Lyman-limit systems seen ...
Stephen J. Warren +3 more
semanticscholar +1 more source
Metals and Dust in Intermediate-Redshift Damped Lyα Galaxies [PDF]
, 2004 We report on spectroscopic observations with the Multiple Mirror Telescope for 11 damped Lyα absorbers (DLAs) or strong DLA candidates at 0.1 < z < 1.5, including several absorbers discovered in the Sloan Digital Sky Survey.
P. Khare +5 more
semanticscholar +1 more source
The Astrophysical Journal Supplement Series, 2023 We present Ly α imaging of 45 low-redshift star-forming galaxies observed with the Hubble Space Telescope. The galaxies have been selected to have moderate to high star formation rates (SFRs) using far-ultraviolet (FUV) luminosity and H α equivalent ...
Jens Melinder +20 more
doaj +1 more source
Abundance Patterns of Heavy Elements in Damped Lyα Galaxies [PDF]
, 1997 We present a quantitative analysis of the abundances of heavy elements in damped Lyα galaxies in the sample of Lu et al. In particular, we compare the observed gas-phase abundances with those expected when the intrinsic (i.e., nucleosynthetic) pattern is
Varsha P. Kulkarni +4 more
semanticscholar +1 more source
The Lyman‐α Sky Background as Observed by New Horizons
Geophysical Research Letters, Volume 45, Issue 16, Page 8022-8028, 28 August 2018., 2018 Abstract Recent observations of interplanetary medium atomic hydrogen Lyman‐α emission in the outer solar system, made with the Alice ultraviolet spectrograph on New Horizons, are presented. The observations include regularly spaced great circle scans of the sky and pointed observations near the downstream and upstream flow directions of interstellar H
G. Randall Gladstone +23 more
wiley +1 more source
Lyman-alpha emission galaxies at a redshift of z = 5.7 in the FORS Deep Field [PDF]
, 2006 We present the results of a search for Lyman-alpha emission galaxies at z~ 5.7 in the FORS Deep Field. The objective of this study is to improve the faint end of the luminosity function of high-redshift Lyman-alpha emitting galaxies and to derive ...
A. Gabasch +50 more
core +1 more source
The z = 0.0912 and z = 0.2212 Damped Lyα Galaxies along the Sight Line toward the Quasar OI 363 [PDF]
, 2000 New optical and infrared observations along the sight line toward the quasar OI 363 (0738+313) are presented and discussed. Excluding quasars selectively observed because they were known to be located behind gas-rich galaxies and systems which lack ...
D. Turnshek +6 more
semanticscholar +1 more source
Heavy Sterile Neutrino in Dark Matter Searches
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 Sterile neutrinos are possible dark matter candidates. We examine here possible detection mechanisms, assuming that the neutrino has a mass of about 50 keV and couples to the ordinary neutrino. Even though this neutrino is quite heavy, it is nonrelativistic with a maximum kinetic energy of 0.1 eV.
Paraskevi C. Divari +2 more
wiley +1 more source