Spitzer, near-infrared, and submillimeter imaging of the relatively sparse young cluster, Lynds 988e

被引:22
作者
Allen, Thomas S. [1 ]
Pipher, Judith L. [1 ]
Gutermuth, Robert A. [2 ]
Megeath, S. Thomas [3 ]
Adams, Joseph D. [4 ]
Herter, Terry L. [4 ]
Williams, Jonathan P. [5 ]
Goetz-Bixby, Jennifer A. [1 ]
Allen, Lori E. [2 ]
Myers, Philip C. [2 ]
机构
[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[3] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA
[4] Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA
[5] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
关键词
infrared : stars; stars : pre-main-sequence; stars : formation;
D O I
10.1086/525241
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present Spitzer images of the relatively sparse, low-luminosity young cluster L988e, as well as complementary near-infrared (NIR) and submillimeter images of the region. The cluster is asymmetric, with the western region of the cluster embedded within the molecular cloud, and the slightly less dense eastern region to the east of, and on the edge of, the molecular cloud. With these data, as well as with extant H alpha data of stars primarily found in the eastern region of the cluster, and a molecular (CO)-C-13 gas emission map of the entire region, we investigate the distribution of forming young stars with respect to the cloud material, concentrating particularly on the differences and similarities between the exposed and embedded regions of the cluster. We also compare star formation in this region to that in denser, more luminous and more massive clusters already investigated in our comprehensive multiwavelength study of young clusters within 1 kpc of the Sun.
引用
收藏
页码:491 / 506
页数:16
相关论文
共 35 条
[1]   Infrared Array Camera (IRAC) colors of young stellar objects [J].
Allen, LE ;
Calvet, N ;
D'Alessio, P ;
Merin, B ;
Hartmann, L ;
Megeath, ST ;
Gutermuth, RA ;
Muzerolle, J ;
Pipher, JL ;
Myers, PC ;
Fazio, GG .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2004, 154 (01) :363-366
[2]  
[Anonymous], 1988, LICK OBS B
[3]  
Baraffe I, 1998, ASTRON ASTROPHYS, V337, P403
[4]   Color transformations for the 2MASS Second Incremental Data Release [J].
Carpenter, JM .
ASTRONOMICAL JOURNAL, 2001, 121 (05) :2851-2871
[5]  
CLARK FO, 1986, ASTRON ASTROPHYS, V164, pL19
[6]  
D'Antona F., 1997, Memorie della Societa Astronomica Italiana, V68, P807
[7]   MOLECULAR CLOUDS IN CYGNUS .1. A LARGE-SCALE (CO)-C-13 SURVEY [J].
DOBASHI, K ;
BERNARD, JP ;
YONEKURA, Y ;
FUKUI, Y .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1994, 95 (02) :419-456
[8]   The flamingos extragalactic survey [J].
Elston, RJ ;
Gonzalez, AH ;
McKenzie, E ;
Brodwin, M ;
Brown, MJI ;
Cardona, G ;
Dey, A ;
Dickinson, M ;
Eisenhardt, PR ;
Jannuzi, BT ;
Lin, YT ;
Mohr, JJ ;
Raines, SN ;
Stanford, SA ;
Stern, D .
ASTROPHYSICAL JOURNAL, 2006, 639 (02) :816-826
[9]   Number counts at 3 μm < λ < 10 μm from the Spitzer Space Telescope [J].
Fazio, GG ;
Ashby, MLN ;
Barmby, P ;
Hora, JL ;
Huang, JS ;
Pahre, MA ;
Wang, Z ;
Willner, SP ;
Arendt, RG ;
Moseley, SH ;
Brodwin, M ;
Eisenhardt, P ;
Stern, D ;
Tollestrup, EV ;
Wright, EL .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2004, 154 (01) :39-43
[10]  
FLAHERTY K, 2007, APJ, V633, P1069