2004ApJS..154..363A

Query : 2004ApJS..154..363A

2004ApJS..154..363A - Astrophys. J., Suppl. Ser., 154, 363-366 (2004/September-0)

Infrared array camera (IRAC) colors of young stellar objects.

ALLEN L.E., CALVET N., D'ALESSIO P., MERIN B., HARTMANN L., MEGEATH S.T., GUTERMUTH R.A., MUZEROLLE J., PIPHER J.L., MYERS P.C. and FAZIO G.G.

Abstract (from CDS):

We compare the infrared colors predicted by theoretical models of protostellar envelopes and protoplanetary disks with initial observations of young stellar objects made with the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. Disk and envelope models characterized by infall and/or accretion rates found in previous studies can quantitatively account for the range of IRAC colors found in four young embedded clusters: S140, S171, NGC 7129, and Cep C. The IRAC color-color diagram ([3.6]-[4.5] vs. [5.8]-[8.0]) can be used to help distinguish between young stars with only disk emission and protostars with circumstellar envelopes.

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Journal keyword(s): Infrared: Stars - Stars: Formation - Stars: Pre-Main-Sequence

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 7822 HII 00 01 08.58 +67 25 17.0           ~ 121 3
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
3 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
4 NGC 7129 OpC 21 43 01.1 +66 07 04     11.5     ~ 271 0
5 SH 2-140 OpC 22 19 07.8 +63 17 07           ~ 668 2
6 IRAS 22176+6303 Y*O 22 19 18.23 +63 18 47.5           ~ 600 0
7 NAME Cep C SFR 23 05 50.0 +62 30 01           ~ 37 0

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