J/A+A/680/A92 GLOSTAR. Radio Source Catalogue. III. (Yang+, 2023)
A global view on star formation: The GLOSTAR Galactic plane survey. IX.
Radio Source Catalog III: 2°<l<28°, 36°<l<40°, 56°<l<60°
and |b|<1°, VLA B-configuration.
Yang A.Y., Dzib S.A., Urquhart J.S., Brunthaler A., Medina S.-N.X.,
Menten K.M., Wyrowski F., Ortiz-Leon G.N., Cotton W.D., Gong Y.,
Dokara R., Rugel M.R., Beuther H., Pandian J.D., Csengeri T., Veena V.S.,
Roy N., Nguyen H., Winkel B., Ott J., Carrasco-Gonzalez C., Khan S.,
Cheema A.
<Astron. Astrophys. 680, A92 (2023)>
=2023A&A...680A..92Y 2023A&A...680A..92Y (SIMBAD/NED BibCode)
ADC_Keywords: Galaxy catalogs ; Surveys; Radio continuum ; Stars, early-type ;
H II regions ; Interferometry
Keywords: catalogs - surveys - radio continuum: general - stars: formation -
HII regions - techniques: interferometric
Abstract:
As part of the GLOSTAR (GLObal view of STAR formation in the Milky
Way) survey, we present the high-resolution continuum source catalog
for the regions (l=2-28, 36-40, 56-60, |b|<1.0), observed with the
Karl G. Jansky Very Large Array (VLA) in its B-configuration. The
continuum images are optimized to detect compact sources on angular
scales up to 4", and have a typical noise level of 1sigma ∼
0.08mJy/beam for an angular resolution of 1", which makes GLOSTAR
currently the highest resolution as well as the most sensitive radio
survey of the northern Galactic plane at 4-8GHz. We extracted 13354
sources above a threshold of 5sigma and 5437 sources above 7sigma that
represent the high-reliability catalog. We determined the in-band
spectral index (alpha) for the sources in the 7sigma-threshold
catalog. The mean value is alpha=-0.6, which indicates that the
catalog is dominated by sources emitting non-thermal radio emission.
We identified the most common source types detected in radio surveys:
251 HII region candidates (113 new), 282 planetary nebulae (PNe)
candidates (127 new), 784 radio star candidates (581 new), and 4080
extragalactic radio source candidates (2175 new). A significant
fraction of HII regions and PNe candidates have alpha←0.1 indicating
that these candidates could contain radio jets, winds or outflows from
high-mass and low-mass stellar objects. We identified 245 variable
radio sources by comparing the flux densities of compact sources from
the GLOSTAR survey and the Co-Ordinated Radio 'N' Infrared Survey for
High-mass star formation (CORNISH), and find that most of them are
infrared quiet. The catalog is typically 95% complete for point
sources at a flux density of 0.6 mJy (i.e. typical 7sigma level) and
the systematic positional uncertainty is ≤0.1". The GLOSTAR data and
catalogs are available online at https://glostar.mpifr-bonn.mpg.de.
Description:
File table3: GLOSTAR B-configuration catalog of 5437 sources 7σ
for the regions (l = 2-28, 36-40, 56-60, |b|<1.0). Here we present the
coordinates and physical properties for the GLOSTAR catalog of 5437
radio continuum sources above 7σ at 5.8GHz.
File table4: GLOSTAR D-configuration sources that are detected as
fragmented sources in the B- configuration for the regions (l=2-28,
36-40, 56-60, |b|<1.0). Here we listed the 56 clustered sources that
trace resolved/fragmented sources coordinates and their GLOSTAR
D-configuration name.
File table6: The catalog of 245 variable radio sources in the GLOSTAR
B-configuration. for the regions (l=2-28, 36-40, 56-60, |b|<1.0). We
present 245 radio sources by comparing the flux densities of compact
sources from the GLOSTAR and CORNISH surveys. A source is considered
to be a variable source if (1) it shows a flux density ratio between
GLOSTAR and CORNISH larger than 2.0; (2) it is detected in CORNISH at
7σ but is not detected by GLOSTAR at 7σ; (3) it is a
GLOSTAR source with a peak flux density higher than the CORNISH
detection limit (2.7mJy/beam) but is not detected by CORNISH.
File tableB.1: The GLOSTAR B-configuration catalog of 7917 5-7σ
sources for the regions (l=2-28, 36-40, 56-60, |b|<1.0). We present
the 7917 radio continuum sources with signal-to-noise ratio
between 5σ and 7σ, that is, the low reliability catalog.
Please noted that the low reliability catalog may include spurious
detections.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 149 5437 Physical properties of GLOSTAR B-configuration
7sigma sources
table4.dat 55 56 List of GLOSTAR D-configuration sources that are
detected as fragmented sources in the
B-configuration images
table6.dat 79 245 List of 245 variable radio sources by comparing
the flux between the GLOSTAR and CORNISH
tableb1.dat 98 7917 Physical properties of GLOSTAR B-configuration
5sigma sources
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See also:
II/293 : GLIMPSE Source Catalog (I + II + 3D) (IPAC 2008)
II/316 : UKIDSS-DR6 Galactic Plane Survey (Lucas+, 2012)
VIII/90 : The FIRST Survey Catalog, Version 12Feb16 (Becker+ 2012)
J/ApJS/205/1 : CORNISH project II. Source catalog (Purcell+, 2013)
J/A+A/619/A124 : THOR survey in northern Galactic plane (Wang+, 2018)
J/AJ/131/2525 : MAGPIS 20cm survey (Helfand+, 2006)
J/AJ/130/586 : Compact radio sources in the galactic plane (White+, 2005)
J/A+A/615/A103 : CORNISH project. III. UCHII region cat. (Kalcheva+, 2018)
J/MNRAS/480/2423 : CORNISH project IV. Radio-selected gal. PN (Irabor+, 2018)
J/A+A/568/A41 : ATLASGAL Compact Source Catalog: 280<l<60 (Urquhart+, 2014)
J/A+A/627/A175 : GLOSTAR. Radio Source Catalogue I (Medina+ 2019)
J/A+A/670/A9 : GLOSTAR. Radio Source Catalogue. II. (Dzib+, 2023)
J/A+A/651/A86 : GLOSTAR Galactic plane survey. II. SNR. (Dokara+, 2021)
J/A+A/666/A59 : GLOSTAR GPS. 6.7GHz Methanol Maser Catalogue (Nguyen+, 2022)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 17 A17 --- Name GLOSTAR name from Galactic coordinates
(GLLL.llll+BB.bbbb)
19- 30 F12.9 deg GLON Galactic longitude
32- 43 F12.9 deg GLAT Galactic latitude
45- 51 F7.2 --- SNR Signal-to-noise of peak
53- 59 F7.2 mJy/beam Speak Peak flux density at 5.8GHz
61- 65 F5.2 mJy/beam e_Speak Uncertainty in Speak
67- 73 F7.2 mJy Sint integrated flux density at 5.8GHz
75- 79 F5.2 mJy e_Sint Uncertainty in Sint
81- 84 F4.2 --- Y-factor Ratio of the integrated and
peak flux densities (1)
86- 89 F4.2 arcsec Radius Effective Radius determined from the number
of pixels associated with the source (2)
91- 97 F7.2 --- alpha* Spectral index fitted from the sub-images
of GLOSTAR
99-105 F7.2 --- e_alpha* ?=-999 Uncertainty of the spectral index
from the fitting process of the
sub-images of GLOSTAR
107-122 A16 --- GLOSTAR GLOSTAR D-configuration counterpart name
(GLLL.llll+BB.bbbb)
124-126 A3 --- NIR Near infrared (NIR) counterparts from
UKIDSS and/or GLIMPSE survey
128-130 A3 --- MIR Mid infrared (MIR) counterparts from
WISE and/or MIPSGAL survey
132-134 A3 --- FIR Far infrared (FIR) counterparts from
Hi-GAL survey
136-138 A3 --- Submm Submm (Submm) counterparts from
ATLASGAL survey
140-149 A10 --- Class Classification assigned to the source (3)
--------------------------------------------------------------------------------
Note (1): Please noted that the flux measurements might be unreliable for
sources which have Sint<Speak, that is, Y-factor <1.0, and please see
Section 4.3.2 for details.
Note (2): Measured angular scale of the emission Radius (Effective Radius),
which has been determined from the number of pixels associated with the
source, and please see Section 4.3.1 for details.
Note (3): Classification as follows:
EgC = Extragalactic source candidate
HII = HII region candidate
Radio-star = Radio star
PN = planetary nebula candidate
PDR = Photodissociation region
Other = source that cannot be classified as one of the above four types,
such as PDR (Photodissociation region) or source with no clear
classification.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 17 A17 --- NameB GLOSTAR B-config source Name
(GLLL.llll+BB.bbbb), brightest fragment
19- 33 A15 --- NameD GLOSTAR D-config source Name (GLLL.lll+BB.bbb)
35- 37 F3.1 --- Nfrag Number of fragments or multiple components
39- 44 F6.2 mJy Sint Integrated flux density of the brightest
component at 5.8GHz
46- 55 A10 --- Class Classification the brightest component
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 17 A17 --- GName Name taken from GLOSTAR or CORNISH
if no GLOSTAR detections (GLLL.llll+BB.bbbb)
19- 23 F5.2 mJy/beam SpeakG ?=- Peak flux from GLOSTAR
25- 28 F4.2 mJy/beam e_SpeakG ?=- Peak flux uncertainty from GLOSTAR
30- 39 A10 --- ClassG Classification from GLOSTAR
41- 45 F5.2 mJy/beam SpeakC ?=- Peak flux from CORNISH
47- 50 F4.2 mJy/beam e_SpeakC ?=- Peak flux uncertainty from CORNISH
52- 79 A28 --- ClassC Classification from CORNISH
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Byte-by-byte Description of file: tableb1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 17 A17 --- GLOSTAR GLOSTAR name from Galactic coordinates
(GLLL.llll+BB.bbbb)
19- 26 F8.5 deg GLON Galactic longitude
28- 35 F8.5 deg GLAT Galactic latitude
37- 39 F3.1 --- SNR Signal-to-noise of peak
41- 45 F5.2 mJy/beam Speak Peak flux density at 5.8GHz
47- 50 F4.2 mJy/beam e_Speak Uncertainty in Speak
52- 56 F5.2 mJy Sint integrated flux density at 5.8GHz
58- 61 F4.2 mJy e_Sint Uncertainty in Sint
63- 81 A19 --- ClassS Classification from SIMBAD database
83- 98 A16 --- NameD GLOSTAR D-configuration counterpart name
(GLLL.llll+BB.bbbb)
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Acknowledgements:
Aiyuan Yang, ayyang(at)mpifr-bonn.mpg.de
References:
Medina et al., RSC Paper I 2019A&A...627A.175M 2019A&A...627A.175M, Cat. J/A+A/627/A175
Dzib et al., RSC Paper II 2023A&A...670A...9D 2023A&A...670A...9D, Cat. J/A+A/670/A9
Brunthaler et al., Paper I 2021A&A...651A..85B 2021A&A...651A..85B
okara et al., Paper II 2021A&A...651A..86D 2021A&A...651A..86D
Ortiz-Leon et al., Paper III 2021A&A...651A..87O 2021A&A...651A..87O
Nguyen et al., Paper IV 2021A&A...651A..88N 2021A&A...651A..88N
Nguyen et al., Paper V 2022A&A...666A..59N 2022A&A...666A..59N
DZIB et al., Paper VI 2023A&A...670A...9D 2023A&A...670A...9D, Cat. J/A+A/670/A9
Dokara et al., Paper VII 2023A&A...671A.145D 2023A&A...671A.145D
Gong et al., Paper VIII 2023A&A...678A.130G 2023A&A...678A.130G
(End) Aiyuan Yang [MPIfR, Germany], Patricia Vannier [CDS] 18-Oct-2023