The MIKE/HIRES Lyman limit survey: first results
نویسندگان
چکیده
منابع مشابه
First Results from the Large Area Lyman Alpha Survey
We report on a new survey for z ≈ 4.5 Lyman-α sources, the Large Area Lyman Alpha (LALA) survey. Our survey achieves an unprecedented combination of volume and sensitivity by using narrow-band filters on the new 8192 pixel CCD Mosaic Camera at the 4 meter Mayall telescope of Kitt Peak National Observatory. Well-detected sources with flux and equivalent width matching known high redshift Lyman-α...
متن کاملThe CYDER survey: first results
We present the Calán-Yale Deep Extragalactic Research (CYDER) Survey. The broad goals of the survey are the study of stellar populations, the star formation history of the universe and the formation and evolution of galaxies. The fields studied include Chandra deep pointings in order to characterize the X-ray faint populations. Here we present the results on the first fields studied. We find th...
متن کاملMission : Impossible ( Escape from the Lyman Limit ) ⋆
We investigate the intrinsic opacity of high-redshift galaxies to outgoing ionising photons using high-quality photometry of a sample of 27 spectroscopically-identified galaxies of redshift 1.9 < z < 3.5 in the Hubble Deep Field. Our measurement is based on maximum-likelihood fitting of model galaxy spectral energy distributions— including the effects of intrinsic Lyman-limit absorption and ran...
متن کاملFirst Results from the SPICES Survey
We present first results from SPICES, the Spectroscopic, Photometric, Infrared-Chosen Extragalactic Survey. SPICES is comprised of four ≈ 30 arcmin high Galactic latitude fields with deep BRIzJKs imaging reaching depths of ≈ 25 mag (AB) in the optical and ≈ 23 mag (AB) in the near-infrared. To date we have 626 spectroscopic redshifts for infrared-selected SPICES sources with Ks < 20 (Vega). The...
متن کاملLyman Limit Systems in Cosmological Simulations
We used cosmological simulation with self-consistent radiative transfer to investigate the physical nature of Lyman limit systems at z = 4. In agreement with previous studies, we find that most of Lyman-limit systems are ionized by the cosmological background, while higher column density systems seem to be illuminated by the local sources of radiation. In addition, we find that most of Lyman li...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2005
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921305003108