J/MNRAS/468/2325 YSOs in star-forming region associated to V582 Aur (Kun+, 2017)
The star formation environment of the FU Ori type star V582 Aur.
Kun M., Szegedi-Elek E., Reipurth B.
<Mon. Not. R. Astron. Soc., 468, 2325-2332 (2017)>
=2017MNRAS.468.2325K 2017MNRAS.468.2325K (SIMBAD/NED BibCode)
ADC_Keywords: Star Forming Region ; YSOs ; Equivalent widths ;
Photometry, infrared
Keywords: stars: formation - stars: individual: V582 Aur -
stars: pre-main-sequence; ISM: clouds -
ISM: individual objects: Lynds 1516 -
open clusters and associations: individual: Aur OB1
Abstract:
We have studied the environment of the FU Ori type star V582 Aur. Our
aim is to explore the star-forming region associated with this young
eruptive star. Using slitless spectroscopy, we searched for Hα
emission stars within a field of 11.5 arcmin x 11.5 arcmin, centred on
V582 Aur. Based on UKIDSS and Spitzer Space Telescope data, we further
selected infrared-excess young stellar object candidates. In all, we
identified 68 candidate low-mass young stars, 16 of which exhibited
Hα emission in the slitless spectroscopic images. The
colour-magnitude diagram of the selected objects, based on the IPHAS
data, suggests that they are low-mass pre-main-sequence stars
associated with the Aur OB 1 association, located at a distance of
1.3kpc from Sun. The bright-rimmed globules in the local environment
of V582 Aur probably belong to the dark cloud LDN 1516. Our results
suggest that star formation in these globules might have been
triggered by the radiation field of a few hot members of Aur OB 1. The
bolometric luminosity of V582 Aur, based on archival photometric data
and on the adopted distance, is 150-320L☉.
Description:
We have investigated the star-forming environment of the less studied
FUor V582 Aur. Based on Hα emission detected in slitless spectra
and infrared excesses revealed by UKIDSS, Spitzer, and WISE archival
data, we identified 68 candidate low-mass young stars in the
11.5 arcmin x 11.5 arcmin area centred on V582 Aur, among them
two bona fide low-mass protostars.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 52 16 Hα emission stars identified during our
WFGS2 observations
table2.dat 118 48 UKIDSS sources classified as candidate YSOs
table3.dat 118 17 The Spitzer sources classified as candidate YSOs
--------------------------------------------------------------------------------
See also:
J/A+A/556/A60 : BVRI observations of the FUor star V582 Aur (Semkov+, 2013)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 A11 --- Name Name (L1516-Ha NN)
12 A1 --- n_Name [*] Note on Name (1)
14- 29 A16 --- 2MASS 2MASS id (HHMMSSss+DDMMSSs)
31- 34 F4.1 0.1nm EWHa1 ? Hα equivalent width measured in the
slitless grism spectra
36- 39 F4.1 0.1nm e_EWHa1 ? rms uncertainty on Hα equivalent width
measured in the slitless grism spectra
41 A1 --- l_EWHa2 Limit flag on EWHa2
42- 44 I3 0.1nm EWHa2 Hα equivalent width estimated from
IPHAS photometry (Fig. 4)
46- 50 F5.2 mag r'mag IPHAS r' magnitude
52 A1 --- IRexcss [Y/N] IR excess ?
--------------------------------------------------------------------------------
Note (1): *: Catalogued as Hα emission star in Witham et al.
(2008, cat. 2008MNRAS.384.1277W 2008MNRAS.384.1277W) from the IPHAS photometry.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- UGPS UGPS name (JHHMMSS.ss+DDMMSS.s)
20- 22 A3 --- n_UGPS [a,b ] Note on UGPS (1)
24- 29 F6.3 mag Jmag ? UKIDSS J magnitude
31- 35 F5.3 mag e_Jmag ? rms uncertainty on J magnitude
37- 42 F6.3 mag Hmag UKIDSS H magnitude
44- 48 F5.3 mag e_Hmag rms uncertainty on H magnitude
50- 55 F6.3 mag Ksmag UKIDSS Ks magnitude
57- 61 F5.3 mag e_Ksmag rms uncertainty on Ks magnitude
63- 68 F6.3 mag [3.6]mag ? IRAC 3.6um magnitude
70- 74 F5.3 mag e_[3.6]mag ? rms uncertainty on [3.6] magnitude
76- 81 F6.3 mag [4.5]mag ? IRAC 4.5um magnitude
83- 87 F5.3 mag e_[4.5]mag ? rms uncertainty on [4.5] magnitude
89-105 A17 --- SST-GLMC SST-GLMC name (GLLL.llll+BB.bbb)
106 A1 --- n_SST-GLMC Note on SST-GLMC (1)
108-118 A11 --- Name L1516-Ha name
--------------------------------------------------------------------------------
Note (1): Notes as follows:
a = Classified as candidate YSO based on the AllWISE data
(Marton et al. 2016MNRAS.458.3479M 2016MNRAS.458.3479M, Cat. J/MNRAS/458/3479)
b = Classified as a candidate galaxy in UKIDSS
c = SST GLMA identifier
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 13-Dec-2019