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Sökning: onr:"swepub:oai:research.chalmers.se:28a754b8-c4f5-48c9-beb8-a30b193f201e" > SiO emission as a p...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004539naa a2200493 4500
001oai:research.chalmers.se:28a754b8-c4f5-48c9-beb8-a30b193f201e
003SwePub
008201203s2020 | |||||||||||000 ||eng|
0247 a https://doi.org/10.1093/mnras/staa29422 DOI
0247 a https://research.chalmers.se/publication/5206882 URI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Cosentino, Giuliana,d 1990u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)giuliana
2451 0a SiO emission as a probe of cloud-cloud collisions in infrared dark clouds
264 c 2020-09-25
264 1b Oxford University Press (OUP),c 2020
520 a Infrared dark clouds (IRDCs) are very dense and highly extincted regions that host the initial conditions of star and stellar cluster formation. It is crucial to study the kinematics and molecular content of IRDCs to test their formation mechanism and ultimately characterize these initial conditions. We have obtained high-sensitivity Silicon Monoxide, SiO(2-1), emission maps towards the six IRDCs, G018.82-00.28, G019.27+00.07, G028.53-00.25, G028.67+00.13, G038.95-00.47, and G053.11+00.05 (cloud A, B, D, E, I, and J, respectively), using the 30-m antenna at the Instituto de Radioastronomia Millimetrica (IRAM30m). We have investigated the SiO spatial distribution and kinematic structure across the six clouds to look for signatures of cloud-cloud collision events that may have formed the IRDCs and triggered star formation within them. Towards clouds A, B, D, I, and J, we detect spatially compact SiO emission with broad-line profiles that are spatially coincident with massive cores. Towards the IRDCs A and I, we report an additional SiO component that shows narrow-line profiles and that is widespread across quiescent regions. Finally, we do not detect any significant SiO emission towards cloud E. We suggest that the broad and compact SiO emission detected towards the clouds is likely associated with ongoing star formation activity within the IRDCs. However, the additional narrow and widespread SiO emission detected towards cloud A and I may have originated from the collision between the IRDCs and flows of molecular gas pushed towards the clouds by nearby H II regions.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
653 a ISM: kinematics and dynamics
653 a ISM: clouds
653 a ISM: molecules
653 a ISM: individual objects: G018.82-00.28, G019.27+00.07, G028.53-00.25, G028.67+00.13, G038.95-00.47, G053.11+00.05
653 a H II regions
7001 a Jimenez-Serra, I4 aut
7001 a Henshaw, J. D.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Caselli, P.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Viti, S.u University College London (UCL)4 aut
7001 a Barnes, A. T.u Universität Bonn,University of Bonn4 aut
7001 a Tan, Jonathan,d 1973u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)tanj
7001 a Fontani, F.u Istituto nazionale di astrofisica (INAF)4 aut
7001 a Wu, B.u National Astronomical Observatory of Japan4 aut
7102 a Chalmers tekniska högskolab Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG)4 org
7730 t Monthly Notices of the Royal Astronomical Societyd : Oxford University Press (OUP)g 499:2, s. 1666-1681q 499:2<1666-1681x 0035-8711x 1365-2966
8564 u http://arxiv.org/pdf/2009.13890
8564 8u https://doi.org/10.1093/mnras/staa2942
8564 8u https://research.chalmers.se/publication/520688

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