J/A+A/588/A63 Photometry of DBS 77-78-102-160-161 regions (Corti+, 2016)
The embedded clusters DBS 77, 78, 102, and 160-161 and their link with the
interstellar medium.
Corti M.A., Baume G.L., Panei J.A., Suad L.A., Testori J.C., Borissova J.,
Kurtev R., Chene A.N., Ramirez Alegria S.
<Astron. Astrophys. 588, A63 (2016)>
=2016A&A...588A..63C 2016A&A...588A..63C (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Clusters, open ; Photometry, UBVRI ;
Photometry, infrared
Keywords: stars: early-type - stars: pre-main sequence - stars: formation -
Galaxy: structure - ISM: structure - radio lines: ISM
Abstract:
We report a study of the global properties of some embedded clusters
placed in the fourth quadrant of the MilkyWay to clarify some issues
related with their location into de Galaxy and their stellar formation
processes.
We performed BVI photometric observations in the region of DBS 77, 78,
102, 160, and 161 clusters and infrared spectroscopy in DBS 77 region.
They were complemented with JHK data from VVV survey combined with
2MASS catalogue, and used mid-infrared information from GLIMPSE
catalogue. We also searched for HI data from SGPS and PMN radio
surveys, and previous spectroscopic stellar classification. The
spectroscopic and photometric information allowed us to estimate the
spectral classification of the brightest stars of each studied region.
On the other hand, we used the radio data to investigate the
interstellar material parameters and the continuum sources probably
associated with the respective stellar components.
We estimated the basic physical parameters of the clusters (reddening,
distance, age, and initial mass function). We searched for HII regions
located near to the studied clusters and we analyzed the possible link
between them. In the particular case of DBS 160-161 clusters, we
identified the HI bubble B332.5-0.1-42 located around them. We found
that the mechanical energy injected to the interstellar medium by the
more massive stars of this couple of clusters was enough to generate
the bubble.
Description:
Photometric data of four regions around the embedded clusters DBS 77,
78, 102, and 160-161. Each table includes equatorial coordinates
(J2000.0) and BVIJHK photometry plus their correlation with GLIMPSE
bands at 3.6, 4.5, 5.8 and 8.0 microns. BVI data were obtained from
images acquired using the SOAR Optical Imager (SOI) mounted at the
SOAR 4.1m telescope at Cerro Tololo Inter-American Observatory (CTIO,
Chile). JHK were obtained from images of the Vista Variables in the
Via Lactea (VVV) survey stored in the VISTA Science Archive (VSA)
and complemented with 2MASS data for the brightest objects (K<11).
Objects:
----------------------------------------------------------
RA (ICRS) DE Designation(s)
----------------------------------------------------------
12 34 52 -61 39.3 DBS 77 = [DBS2003] 77
12 36 03 -61 51.0 DBS 78 = [DBS2003] 78
16 15 01 -49 50.7 DBS 102 = [DBS2003] 102
16 16 56 -50 47.4 DBS 160 = [DBS2003] 160
16 17 05 -50 47.3 DBS 161 = [DBS2003] 161
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File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table4a.dat 235 8887 Photometric catalogue of the DBS 77 region
table4a.vot 80 222216 VOtable version of table4a.dat
table4b.dat 235 15694 Photometric catalogue of the DBS 78 region
table4b.vot 80 392391 VOtable version of table4b.dat
table4c.dat 235 11022 Photometric catalogue of the DBS 102 region
table4c.vot 80 275591 VOtable version of table4c.dat
table4d.dat 235 18945 Photometric catalogue of the DBS 160/161 region
table4d.vot 80 473666 VOtable version of table4d.dat
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Byte-by-byte Description of file: table4?.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 6 I5 --- Seq Identification number (this work)
8- 20 F13.8 deg RAdeg Right Ascension (J2000.0)
23- 35 F13.8 deg DEdeg Declination (J2000.0)
38- 45 F8.4 mag Bmag ?=99.9999 B magnitude
48- 55 F8.4 mag e_Bmag ?=99.9999 B magnitude error (1)
58- 65 F8.4 mag Vmag ?=99.9999 V magnitude
68- 75 F8.4 mag e_Vmag ?=99.9999 V magnitude error (1)
78- 85 F8.4 mag Imag ?=99.9999 I magnitude
88- 95 F8.4 mag e_Imag ?=99.9999 I magnitude error (1)
98-105 F8.4 mag Jmag ?=99.9999 J magnitude (2)
108-115 F8.4 mag e_Jmag ?=99.9999 J magnitude error (1)
118-125 F8.4 mag Hmag H magnitude (2)
128-135 F8.4 mag e_Hmag H magnitude error (1)
138-145 F8.4 mag Kmag K magnitude (2)
148-155 F8.4 mag e_Kmag K magnitude error (1)
158-165 F8.4 mag [3.6] ?=99.9999 GLIMPSE 3.6 microns magnitude (3)
168-175 F8.4 mag e_[3.6] ?=99.9999 GLIMPSE 3.6 microns magnitude error (3)
178-185 F8.4 mag [4.5] ?=99.9999 GLIMPSE 4.5 microns magnitude (3)
188-195 F8.4 mag e_[4.5] ?=99.9999 GLIMPSE 4.5 microns magnitude error (3)
198-205 F8.4 mag [5.8] ?=99.9999 GLIMPSE 5.8 microns magnitude (3)
208-215 F8.4 mag e_[5.8] ?=99.9999 GLIMPSE 5.8 microns magnitude error (3)
218-225 F8.4 mag [8.0] ?=99.9999 GLIMPSE 8.0 microns magnitude (3)
228-235 F8.4 mag e_[8.0] ?=99.9999 GLIMPSE 8.0 microns magnitude error (3)
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Note (1): Photometric errors provided by DAOPHOT and DAOMASTER codes
Note (2): JHK bands tied to the 2MASS catalogue (Cat. II/246) system
Note (3): Data from GLIMPSE Source Catalog (I+II+3D) (IPAC, 2008, Cat. (II/293))
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Acknowledgements:
Mariela Corti, mariela.a.corti(at)gmail.com
Gustavo Baume, gbaume(at)fcaglp.unlp.edu.ar
(End) Patricia Vannier [CDS] 18-Jan-2016