GALAXY AND MASS ASSEMBLY (GAMA): MID-INFRARED PROPERTIES AND EMPIRICAL RELATIONS FROM WISE

被引：212

作者：

Cluver, M. E. ^{[1
,2
]}

Jarrett, T. H. ^{[1
]}

Hopkins, A. M. ^{[2
]}

Driver, S. P. ^{[3
,4
]}

Liske, J. ^{[5
]}

Gunawardhana, M. L. P. ^{[6
,7
]}

Taylor, E. N. ^{[8
]}

Robotham, A. S. G. ^{[3
]}

Alpaslan, M. ^{[4
]}

Baldry, I. ^{[9
]}

Brown, M. J. I. ^{[10
]}

Peacock, J. A. ^{[11
]}

Popescu, C. C. ^{[12
]}

Tuffs, R. J. ^{[13
]}

Bauer, A. E. ^{[2
]}

Bland-Hawthorn, J. ^{[7
]}

Colless, M. ^{[14
]}

Holwerda, B. W. ^{[15
]}

Lara-Lopez, M. A. ^{[2
]}

Leschinski, K. ^{[16
]}

Lopez-Sanchez, A. R. ^{[17
]}

Norberg, P. ^{[6
]}

Owers, M. S. ^{[2
]}

Wang, L. ^{[6
]}

Wilkins, S. M. ^{[18
]}

机构：

[1] Univ Cape Town, Dept Astron, ZA-7701 Rondebosch, South Africa

[2] Australian Astron Observ, N Ryde, NSW 1670, Australia

[3] Univ Western Australia, Int Ctr Radio Astron Res ICRAR, Crawley, WA 6009, Australia

[4] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

[5] European So Observ, D-85748 Garching, Germany

[6] Univ Durham, Dept Phys, Inst Computat Cosmol, Durham DH1 3LE, England

[7] Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia

[8] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[9] Liverpool John Moores Univ, IC2, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England

[10] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia

[11] Univ Edinburgh, Royal Observ, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland

[12] Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England

[13] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[14] Australian Natl Univ, Canberra, ACT 2611, Australia

[15] Leiden Univ, Sterrenwacht Leiden, NL-2333 CA Leiden, Netherlands

[16] Univ Vienna, Inst Astrophys, A-1180 Vienna, Austria

[17] Macquarie Univ, Dept Phys & Astron, N Ryde, NSW 2109, Australia

[18] Univ Sussex, Dept Phys & Astron, Ctr Astron, Brighton BN1 9QH, E Sussex, England

来源：

ASTROPHYSICAL JOURNAL | 2014年 / 782卷 / 02期

基金：

新加坡国家研究基金会; 澳大利亚研究理事会; 欧洲研究理事会; 美国国家航空航天局;

关键词：

catalogs; galaxies: star formation; galaxies: stellar content; infrared: galaxies; surveys; STAR-FORMATION RATE; POLYCYCLIC AROMATIC-HYDROCARBONS; ACTIVE GALACTIC NUCLEI; SKY SURVEY; INFRARED-EMISSION; DATA RELEASE; RESOLUTION; CATALOG; ULTRAVIOLET; DUST;

D O I：

10.1088/0004-637X/782/2/90

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Galaxy And Mass Assembly (GAMA) survey furnishes a deep redshift catalog that, when combined with the Wide-field Infrared Survey Explorer (WISE), allows us to explore for the first time the mid-infrared properties of >110,000 galaxies over 120 deg(2) to z similar or equal to 0.5. In this paper we detail the procedure for producing the matched GAMA-WISE catalog for the G12 and G15 fields, in particular characterizing and measuring resolved sources; the complete catalogs for all three GAMA equatorial fields will be made available through the GAMA public releases. The wealth of multiwavelength photometry and optical spectroscopy allows us to explore empirical relations between optically determined stellar mass (derived from synthetic stellar population models) and 3.4 mu m and 4.6 mu m WISE measurements. Similarly dust-corrected Ha-derived star formation rates can be compared to 12 mu m and 22 mu m luminosities to quantify correlations that can be applied to large samples to z < 0.5. To illustrate the applications of these relations, we use the 12 mu m star formation prescription to investigate the behavior of specific star formation within the GAMA-WISE sample and underscore the ability of WISE to detect star-forming systems at z similar to 0.5. Within galaxy groups (determined by a sophisticated friends-of-friends scheme), results suggest that galaxies with a neighbor within 100 h(-1) kpc have, on average, lower specific star formation rates than typical GAMA galaxies with the same stellar mass.

引用

页数：17

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