12 strong galactic bars CO spectra : J/A+A/654/A135


Authors : Diaz-Garcia S. orcid , Lisenfeld U., Perez I. (hide) , Lisenfeld U., Perez I. et..al

Bibcode : 2021A&A...654A.135D (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Galaxies, nearby; Galaxies, photometry; Galaxies, radio; Photometry, infrared; Photometry, millimetric/submm; Photometry, ultraviolet
UAT : Galaxies, Galaxies, Photometry, Radio galaxies, Infrared photometry, Millimeter astronomy, Photometry, Submillimeter astronomy, Ultraviolet photometry

Observation (OC)

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Inserted into VizieR : 22-Oct-2021
Last modification : 19-Jan-2022

Molecular gas and star formation within 12 strong galactic bars observed with IRAM-30m. (2021)

Keywords : galaxies star formation - galaxies: ISM - galaxies: structure - galaxies: evolution - galaxies: statistics

Abstract:While some galactic bars show recent massive star formation (SF) along them, some others present a lack of it. Whether bars with low level of SF are a consequence of low star formation efficiency, low gas inflow rate, or dynamical effects, remains a matter of debate. In order to study the physical conditions that enable or prevent SF, we perform a multi-wavelength analysis of 12 strongly barred galaxies with total stellar masses log10(M*/M_{sun}_){in}[10.2,11], chosen to host different degrees of SF along the bar major axis without any prior condition on gas content. We observe the CO(1-0) and CO(2-1) emission within bars with the IRAM-30m telescope (beam sizes of ...(more)
Abstract: (hide)
Here we provide the CO(1-0) and CO(2-1) spectra gathered with the IRAM-30m telescope along the bars of 12 nearby galaxies (see Sect. 2.2). For each galaxy, we tabulate the J2000 equatorial coordinates of the central pointing (in degrees). For each pointing, we list the observed frequency (in MHz) and intensity of the spectra (in the main beam temperature scale, in units of mK, baseline subtracted). The file names with the spectra indicate the offset of the pointings with respect to the central one (in RA and DEC, respectively, in units of arcsec). For instance, NGC4548_CO10_-40_-20.dat tabulates NGC4548's CO(1-0) spectra for a pointing with an offset of -40arcsec in RA and -20arcsec in DEC with respect to the central pointing.
Simon Diaz Garcia, simondiazgar(at)gmail.com, Instituto de Astrofisica de Canarias, Spain - Queen's University, Canada

                
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