2017
DOI: 10.1051/0004-6361/201629866
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A CO survey on a sample ofHerschelcold clumps

Abstract: Context. The physical state of cold cloud clumps has a great impact on the process and efficiency of star formation and the masses of the forming stars inside these objects. The sub-millimetre survey of the Planck space observatory and the far-infrared follow-up mapping of the Herschel space telescope provide an unbiased, large sample of these cold objects. Aims. We have observed 12 CO(1−0) and 13 CO(1−0) emission in 35 high-density clumps in 26 Herschel fields sampling different environments in the Galaxy. We… Show more

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Cited by 15 publications
(17 citation statements)
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References 48 publications
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“…where T kin is the kinetic temperature in the core. If the densities of the cores are high enough so that LTE conditions hold, T ex can be adopted as T kin (Fehér et al 2017). For the dense Table 3.…”
Section: Excitation Temperature Optical Depth and Velocity Dispersionmentioning
confidence: 99%
“…where T kin is the kinetic temperature in the core. If the densities of the cores are high enough so that LTE conditions hold, T ex can be adopted as T kin (Fehér et al 2017). For the dense Table 3.…”
Section: Excitation Temperature Optical Depth and Velocity Dispersionmentioning
confidence: 99%
“…CO clumps have been detected towards PGCCs (e.g. Liu et al 2013;Meng, Wu & Liu 2013;Parikka et al 2015;Zhang et al 2016;Fehér et al 2017), as well as detections of line emission from dense gas tracers (Yuan et al 2016). There can be, however, low levels of active star formation within PGCCs (Tóth et al 2014;Liu et al 2015;Tang et al 2018;Yi et al 2018;Zhang et al 2018).…”
Section: Introductionmentioning
confidence: 99%
“…Studies have already been carried out on the structure of filaments (Rivera-Ingraham et al 2016 and high-latitude clouds, especially the cloud LDN 1642 (Malinen et al 2014(Malinen et al , 2016, and the kinematics (e.g. the internal turbulence of the clumps) through molecular line observations (Parikka et al 2015;Fehér et al 2017;Saajasto et al 2017).…”
Section: Introductionmentioning
confidence: 99%