CDS

2010A&A...523A..63D

Query : 2010A&A...523A..63D

2010A&A...523A..63D - Astronomy and Astrophysics, volume 523, A63-63 (2010/11-2)

Detection of extended molecular gas in the disk of the LSB galaxy Malin 2.

DAS M., BOONE F. and VIALLEFOND F.

Abstract (from CDS):

Our goal is to see if there is molecular gas extending throughout the optical low surface brightness disk of the galaxy Malin 2. We used the heterodyne receiver array (HERA) mounted on the IRAM 30m telecope to make deep observations at the frequency of the CO(2-1) line at nine different positions of Malin 2. With a total observing time of 11 h at a velocity resolution of 11km/s we achieve a sensitivity level of 1mK. We detect CO(2-1) line emission from Malin 2. The line is detected in four of the nine HERA beams; a fifth beam shows a marginal detection. These results not only confirm that there is molecular gas in the disk of Malin 2, but they also show that it is spread throughout the inner 34kpc radius as sampled by the observations of the galaxy disk. The mean molecular gas surface density in the disk is 1.1±0.2M☉/pc2, and the molecular gas mass lies between the limits 4.9x108 to 8.3x108M☉. The observed velocity dispersion of the molecular gas is higher (∼13km/s) than in star-forming galactic disks. This could explain the disk stability and its low star-formation activity.

Abstract Copyright: ∼

Journal keyword(s): galaxies: spiral - galaxies: kinematics and dynamics - galaxies: ISM - ISM: molecules - radio lines: ISM - galaxies: individual: Malin 2

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 2MASS J10395248+2050493 LIN 10 39 52.4820927048 +20 50 49.375560660   14.20       ~ 91 0

Query : 2010A&A...523A..63D

Basic data :
2MASS J10395248+2050493 -- LINER-type Active Galaxy Nucleus
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		G (2011MNRAS,LEDA,...), LIN (2014ApJ), X (2XMM,3XMM), Rad (FIRST,NVSS), rG (2018AJ), LSB (LSB), * (Gaia), NIR (2MASS), Opt (SDSS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		10 39 52.4820927048 +20 50 49.375560660 (Optical) [ 2.0479 1.6365 90 ] C 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		10 37 09.8180509967 +21 06 28.812184921 [ 2.0479 1.6365 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		217.5622829819573 +59.3927290786277 [ 2.0479 1.6365 90 ]
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 13485 [3] / z(spectroscopic) 0.04604 [0.00001] / cz 13802.4 [3.0]
   (Opt) C 2012ApJS..203...21A
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type: 		Scd D 2014MNRAS.437.3072K
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		0.480 0.336 75 (NIR) C 2006AJ....131.1163S
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (10) :
B 14.20 [~] E ~
G 19.549870 [0.018482] C 2020yCat.1350....0G
J 12.165 [0.031] C 2006AJ....131.1163S
H 11.471 [0.038] C 2006AJ....131.1163S
K 11.476 [0.071] C 2006AJ....131.1163S
u (AB) 17.223 [0.017] C 2012ApJS..203...21A
g (AB) 15.326 [0.003] B 2012ApJS..203...21A
r (AB) 14.413 [0.002] B 2012ApJS..203...21A
i (AB) 13.993 [0.002] B 2012ApJS..203...21A
z (AB) 13.700 [0.004] B 2012ApJS..203...21A
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (14) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LEDA 86622 Malin 2 NVSS J103952+205051 3XMM J103952.4+205049
AGC 201054 2MASS J10395248+2050493 SDSS J103952.47+205049.3 Gaia DR3 3987719255634128000
FIRST J103952.4+205049 2MASX J10395250+2050490 TIC 95743755
LSB F568-6 NPM1G +21.0267 2XMM J103952.4+205049

References (91 between 1850 and 2023) (Total 91)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 3   

   

Observing logs


XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 2MASS J10395248+2050493

Link by name to the catalogue in VizieR :

FIRST J103952.4+205049 2MASS J10395248+2050493 2MASX J10395250+2050490 NPM1G +21.0267 NVSS J103952+205051
SDSS J103952.47+205049.3 Gaia DR3 3987719255634128000

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2023.10.03-08:49:41

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