| Autor: |
Michelle A. Berg, Nicolas Lehner, J. Christopher Howk, John M. O’Meara, Joop Schaye, Lorrie A. Straka, Kathy L. Cooksey, Todd M. Tripp, J. Xavier Prochaska, Benjamin D. Oppenheimer, Sean D. Johnson, Sowgat Muzahid, Rongmon Bordoloi, Jessica K. Werk, Andrew J. Fox, Neal Katz, Martin Wendt, Molly S. Peeples, Joseph Ribaudo, Jason Tumlinson |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
The Astrophysical Journal, Vol 944, Iss 1, p 101 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1538-4357 |
| DOI: |
10.3847/1538-4357/acb047 |
| Popis: |
The bimodal absorption system imaging campaign (BASIC) aims to characterize the galaxy environments of a sample of 36 H i -selected partial Lyman limit systems (pLLSs) and Lyman limit systems (LLSs) in 23 QSO fields at z ≲ 1. These pLLSs/LLSs provide a unique sample of absorbers with unbiased and well-constrained metallicities, allowing us to explore the origins of metal-rich and low-metallicity circumgalactic medium (CGM) at z < 1. Here we present Keck/KCWI and Very Large Telescope/MUSE observations of 11 of these QSO fields (19 pLLSs) that we combine with Hubble Space Telescope/Advanced Camera for Surveys imaging to identify and characterize the absorber-associated galaxies at 0.16 ≲ z ≲ 0.84. We find 23 unique absorber-associated galaxies, with an average of one associated galaxy per absorber. For seven absorbers, all with |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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