2006ApJ...649L..37B


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET11:00:46

2006ApJ...649L..37B - Astrophys. J., 649, L37-L40 (2006/September-3)

The Spitzer c2d survey of nearby dense cores. II. Discovery of a low-luminosity object in the ``evolved starless core'' L1521F.

BOURKE T.L., MYERS P.C., EVANS II N.J., DUNHAM M.M., KAUFFMANN J., SHIRLEY Y.L., CRAPSI A., YOUNG C.H., HUARD T.L., BROOKE T.Y., CHAPMAN N., CIEZA L., LEE C.W., TEUBEN P. and WAHHAJ Z.

Abstract (from CDS):

We present Spitzer Space Telescope observations of the ``evolved starless core'' L1521F that reveal the presence of a very low luminosity object (L < 0.07 L). The object, L1521F-IRS, is directly detected at mid-infrared wavelengths (>5 µm), but only in scattered light at shorter infrared wavelengths, showing a bipolar nebula oriented east-west that is probably tracing an outflow cavity. The nebula strongly suggests that L1521F-IRS is embedded in the L1521F core. Thus, L1521F-IRS is similar to the recently discovered L1014-IRS and the previously known IRAM 04191 in its substellar luminosity and dense core environment. However, these objects differ significantly in their core density, core chemistry, and outflow properties, and some may be destined to be brown dwarfs rather than stars.

Abstract Copyright:

Journal keyword(s): ISM: Individual: Alphanumeric: L1521F - ISM: individual (L1521F-IRS) - Stars: Formation - Stars: Low-Mass, Brown Dwarfs

Nomenclature: [BME2006] L1521F-IRS N=1.

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 IRAS 04191+1523 Y*O 04 22 00.43944 +15 30 21.2148           ~ 189 0
2 WISE J042838.78+265134.6 Y*O 04 28 38.78544 +26 51 34.6824           ~ 43 0
3 LDN 1521F DNe 04 28 39.3 +26 51 43           ~ 190 1
4 Bad 16 Y*O 04 30 50.2775823865 +23 00 08.771252817       14.95   F1 135 0
5 LDN 1544 DNe 05 04 16.6 +25 10 48           ~ 716 0
6 NAME [BM89] L1544 cor 05 04 22.5 +25 11 36           ~ 435 1
7 LDN 1014 cor 21 24 05.9 +49 59 07           ~ 92 0
8 NAME LDN 1014 IRS Y*O 21 24 07.58 +49 59 08.9           ~ 76 0

    Equat.    Gal    SGal    Ecl

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2021.03.03-11:00:46

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