1999AJ....117..439P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST07:20:58

1999AJ....117..439P - Astron. J., 117, 439-445 (1999/January-0)

Deep near-infrared images and ISOCAM observations of Chamaeleon I North.

PERSI P., MARENZI A.R., KAAS A.A., OLOFSSON G., NORDH L. and ROTH M.

Abstract (from CDS):

We present the results of deep near-infrared imaging and ISOCAM observations of three selected regions localized in the northern part of the Chamaeleon I dark cloud, in order to search for the low-luminosity population. In an area of 3 x 3 arcmin2 centered on the bipolar molecular outflow, which is the densest part of the cloud, we have discovered a new Class I source (here named ISOCAM-Cha INa2) with a spectral index α = 1.9 and 1-18 µm luminosity of 0.6 L that is most probably responsible for the observed CO outflow. The comparison between the observed K-magnitude distribution for this region and that obtained for a region outside the outflow and adjacent to the star HD 97300 indicates the possible presence of a very low luminosity young stellar population in the densest part of the cloud.

Abstract Copyright:

Journal keyword(s): ISM: Clouds - ISM: Jets and Outflows - Stars: Formation - Stars: Pre-Main-Sequence

Nomenclature: Table 1: [PMK99] ISOCAM Cha INaN (Nos INa1 to INa6). Table 2: [PMK99] IR Cha INaN (Nos INa1 to INa4).

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Cha I MoC 11 06 48 -77 18.0           ~ 968 1
2 V* HV Cha Or* 11 09 22.6506851116 -76 34 32.169764007         16.79 M0.75-M1.75 49 0
3 V* GM Cha Or* 11 09 28.55424 -76 33 28.1376           M3.5-M6.5 41 0
4 OTS 18 IR 11 09 36.6 -76 33 39           ~ 8 0
5 HJM C 1-24 TT* 11 09 46.1867409078 -76 34 46.505353388   11.93 18.41   14.72 M3.25e 52 1
6 HD 97300 Ae* 11 09 50.0178181814 -76 36 47.711452436   9.41 9.20   8.82 B9V 157 1
7 Ass Cha T 1-23 Or* 11 09 53.4191770981 -76 34 25.652662545   13.9 19.50 15.10 13.52 G9IIIe 80 0
8 HJM C 1-2 Or* 11 09 55.0057844533 -76 32 41.235293097         17.85 M0- 31 0
9 V* WW Cha Or* 11 10 00.0791962314 -76 34 57.971855660   14.74 14.10   10.95 ~ 130 0
10 [PMK99] IR Cha INa3 IR 11 10 01.5 -76 32 50           ~ 1 0
11 [PMK99] IR Cha INa4 Y*O 11 10 03.368 -76 33 11.13           M4: 15 0
12 HJM C 1-4 Y*O 11 10 03.6833471517 -76 33 29.222406347     18.78 16.1 14.72 K8e 52 0

    Equat.    Gal    SGal    Ecl

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2020.07.05-07:20:58

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