1997A&A...324L...5C


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST05:36:44

1997A&A...324L...5C - Astronomy and Astrophysics, volume 324, L5-8 (1997/8-2)

Extinction map of Chamaeleon I molecular cloud with DENIS star counts.

CAMBRESY L., EPCHTEIN N., COPET E., DE BATZ B., KIMESWENGER S., LE BERTRE T., ROUAN D. and TIPHENE D.

Abstract (from CDS):

Massive, large scale star counts in the J (1.25µm) band provided by the Deep Near Infrared Survey of the Southern Sky (DENIS) are used for the first time to draw out an extinction map of the Chamaeleon I dark cloud. We derived a 2' resolution map of the cloud from J star counts within an area of 1.5°x3° around the centre of the cloud using an adaptive grid method and applying a wavelet decomposition. Possible contaminating young stellar objects within the cloud are removed, although they are shown to have a negligible effect on the counts. A comparison of our extinction map with the cold contribution of the IRAS 100µm emission shows an almost perfect matching. It is shown that J star counts supersede optical counts on Schmidt plate where AV>4.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: dust, extinction - ISM: individual objects: Chamaeleon (name Chamaeleon 1

Simbad objects: 3

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Number of rows : 3

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 HD 97048 Ae* 11 08 03.3105687971 -77 39 17.491180130 9.03 8.76 9.00   8.64 A0Vep 458 0
3 HD 97300 Ae* 11 09 50.0178181814 -76 36 47.711452436   9.41 9.20   8.82 B9V 157 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-05:36:44

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