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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003935naa a2200541 4500
001oai:DiVA.org:su-221087
003SwePub
008230918s2023 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2210872 URI
0247 a https://doi.org/10.1093/mnras/stad21342 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Karki, Arjun4 aut
2451 0a MUSE-ALMA Haloes - IX. Morphologies and stellar properties of gas-rich galaxies
264 1c 2023
338 a print2 rdacarrier
520 a Understanding how galaxies interact with the circumgalactic medium (CGM) requires determining how galaxies’ morphological and stellar properties correlate with their CGM properties. We report an analysis of 66 well-imaged galaxies detected in Hubble Space Telescope and Very Large Telescope MUSE observations and determined to be within ±500 km s−1 of the redshifts of strong intervening quasar absorbers at 0.2 ≲ z ≲ 1.4 with H I column densities NHI>1018cm−2�HI>1018cm−2⁠. We present the geometrical properties (Sérsic indices, effective radii, axis ratios, and position angles) of these galaxies determined using GALFIT. Using these properties along with star formation rates (SFRs, estimated using the H α or [O II] luminosity) and stellar masses (M* estimated from spectral energy distribution fits), we examine correlations among various stellar and CGM properties. Our main findings are as follows: (1) SFR correlates well with M*, and most absorption-selected galaxies are consistent with the star formation main sequence of the global population. (2) More massive absorber counterparts are more centrally concentrated and are larger in size. (3) Galaxy sizes and normalized impact parameters correlate negatively with NHI, consistent with higher NHI absorption arising in smaller galaxies, and closer to galaxy centres. (4) Absorption and emission metallicities correlate with M* and specific SFR, implying metal-poor absorbers arise in galaxies with low past star formation and faster current gas consumption rates. (5) SFR surface densities of absorption-selected galaxies are higher than predicted by the Kennicutt–Schmidt relation for local galaxies, suggesting a higher star formation efficiency in the absorption-selected galaxies.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a galaxies
653 a evolution - (galaxies: ) quasars
653 a absorption lines - galaxies
653 a stellar content - galaxies
653 a structure
7001 a Kulkarni, Varsha P.4 aut
7001 a Weng, Simon4 aut
7001 a Péroux, Celine4 aut
7001 a Augustin, Ramona4 aut
7001 a Hayes, Matthew J.,d 1977-u Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)mhaye
7001 a Ayromlou, Mohammadreza4 aut
7001 a Kacprzak, Glenn G.4 aut
7001 a Howk, J. Christopher4 aut
7001 a Szakacs, Roland4 aut
7001 a Klitsch, Anne4 aut
7001 a Hamanowicz, Aleksandra4 aut
7001 a Fresco, Alejandra4 aut
7001 a Zwaan, Martin A.4 aut
7001 a Biggs, Andrew D.4 aut
7001 a Fox, Andrew J.4 aut
7001 a Kassin, Susan4 aut
7001 a Kuntschner, Harald4 aut
7102 a Stockholms universitetb Institutionen för astronomi4 org
7730 t Monthly notices of the Royal Astronomical Societyg 524:4, s. 5524-5547q 524:4<5524-5547x 0035-8711x 1365-2966
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-221087
8564 8u https://doi.org/10.1093/mnras/stad2134

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