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The COS Legacy Arch...
The COS Legacy Archive Spectroscopy Survey (CLASSY) Treasury Atlas
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Berg, Danielle A. (author)
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James, Bethan L. (author)
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King, Teagan (author)
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show more...
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McDonald, Meaghan (author)
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Chen, Zuyi (author)
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Chisholm, John (author)
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Heckman, Timothy (author)
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Martin, Crystal L. (author)
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Stark, Dan P. (author)
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Aloisi, Alessandra (author)
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Amorín, Ricardo O. (author)
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Arellano-Córdova, Karla Z. (author)
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Bayliss, Matthew (author)
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Bordoloi, Rongmon (author)
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Brinchmann, Jarle (author)
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Charlot, Stéphane (author)
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Chevallard, Jacopo (author)
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Clark, Ilyse (author)
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Erb, Dawn K. (author)
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Feltre, Anna (author)
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Gronke, Max (author)
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- Hayes, Matthew (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Henry, Alaina (author)
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Hernandez, Svea (author)
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Jaskot, Anne (author)
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Jones, Tucker (author)
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Kewley, Lisa J. (author)
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Kumari, Nimisha (author)
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Leitherer, Claus (author)
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Llerena, Mario (author)
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Maseda, Michael (author)
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Mingozzi, Matilde (author)
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Nanayakkara, Themiya (author)
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Ouchi, Masami (author)
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Plat, Adele (author)
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Pogge, Richard W. (author)
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Ravindranath, Swara (author)
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Rigby, Jane R. (author)
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Sanders, Ryan (author)
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Scarlata, Claudia (author)
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Senchyna, Peter (author)
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Skillman, Evan D. (author)
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Steidel, Charles C. (author)
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Strom, Allison L. (author)
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Sugahara, Yuma (author)
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Wilkins, Stephen M. (author)
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Wofford, Aida (author)
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Xu, Xinfeng (author)
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(creator_code:org_t)
- 2022-07-27
- 2022
- English.
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In: Astrophysical Journal Supplement Series. - : American Astronomical Society. - 0067-0049 .- 1538-4365. ; 261:2
- Related links:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- Far-ultraviolet (FUV; ∼1200–2000 Å) spectra are fundamental to our understanding of star-forming galaxies, providing a unique window on massive stellar populations, chemical evolution, feedback processes, and reionization. The launch of the James Webb Space Telescope will soon usher in a new era, pushing the UV spectroscopic frontier to higher redshifts than ever before; however, its success hinges on a comprehensive understanding of the massive star populations and gas conditions that power the observed UV spectral features. This requires a level of detail that is only possible with a combination of ample wavelength coverage, signal-to-noise, spectral-resolution, and sample diversity that has not yet been achieved by any FUV spectral database. We present the Cosmic Origins Spectrograph Legacy Spectroscopic Survey (CLASSY) treasury and its first high-level science product, the CLASSY atlas. CLASSY builds on the Hubble Space Telescope (HST) archive to construct the first high-quality (S/N1500 Å ≳ 5/resel), high-resolution (R ∼ 15,000) FUV spectral database of 45 nearby (0.002 < z < 0.182) star-forming galaxies. The CLASSY atlas, available to the public via the CLASSY website, is the result of optimally extracting and coadding 170 archival+new spectra from 312 orbits of HST observations. The CLASSY sample covers a broad range of properties including stellar mass (6.2 < log M⋆(M⊙) < 10.1), star formation rate (−2.0 < log SFR (M⊙ yr−1) < +1.6), direct gas-phase metallicity (7.0 < 12+log(O/H) < 8.8), ionization (0.5 < O32 < 38.0), reddening (0.02 < E(B − V) < 0.67), and nebular density (10 < ne (cm−3) < 1120). CLASSY is biased to UV-bright star-forming galaxies, resulting in a sample that is consistent with the z ∼ 0 mass–metallicity relationship, but is offset to higher star formation rates by roughly 2 dex, similar to z ≳ 2 galaxies. This unique set of properties makes the CLASSY atlas the benchmark training set for star-forming galaxies across cosmic time.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Galaxies
- Ultraviolet surveys
- Emission line galaxies
- Interstellar line absorption
- Lyman-alpha galaxies
- High-redshift galaxies
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Berg, Danielle A ...
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James, Bethan L.
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King, Teagan
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McDonald, Meagha ...
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Chen, Zuyi
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Chisholm, John
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show more...
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Heckman, Timothy
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Martin, Crystal ...
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Stark, Dan P.
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Aloisi, Alessand ...
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Amorín, Ricardo ...
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Arellano-Córdova ...
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Bayliss, Matthew
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Bordoloi, Rongmo ...
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Brinchmann, Jarl ...
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Charlot, Stéphan ...
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Chevallard, Jaco ...
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Clark, Ilyse
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Erb, Dawn K.
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Feltre, Anna
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Gronke, Max
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Hayes, Matthew
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Henry, Alaina
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Hernandez, Svea
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Jaskot, Anne
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Jones, Tucker
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Kewley, Lisa J.
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Kumari, Nimisha
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Leitherer, Claus
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Llerena, Mario
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Maseda, Michael
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Mingozzi, Matild ...
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Nanayakkara, The ...
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Ouchi, Masami
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Plat, Adele
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Pogge, Richard W ...
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Ravindranath, Sw ...
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Rigby, Jane R.
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Sanders, Ryan
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Scarlata, Claudi ...
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Senchyna, Peter
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Skillman, Evan D ...
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Steidel, Charles ...
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Strom, Allison L ...
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Sugahara, Yuma
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Wilkins, Stephen ...
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Wofford, Aida
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Xu, Xinfeng
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astrophysical Jo ...
- By the university
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Stockholm University