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Sökning: WFRF:(Ramírez Ivan) > (2015-2019) > Sub-arcsecond imagi...

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FältnamnIndikatorerMetadata
00004925naa a2200553 4500
001oai:research.chalmers.se:7c26b594-bcb0-4bce-b8fb-98bee54d0cd5
003SwePub
008180322s2018 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5014302 URI
0247 a https://doi.org/10.1051/0004-6361/2017325432 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Ramirez-Olivencia, Naimu Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)4 aut
2451 0a Sub-arcsecond imaging of Arp 299-A at 150 MHz with LOFAR: Evidence for a starburst-driven outflow
264 c 2018-03-08
264 1b EDP Sciences,c 2018
338 a electronic2 rdacarrier
520 a We report on the first sub-arcsecond (0.44 × 0.41 arcsec 2 ) angular resolution image at 150 MHz of the A-nucleus in the luminous infrared galaxy Arp 299, from International Low Frequency Array (LOFAR) Telescope observations. The most remarkable finding is that of an intriguing two-sided, filamentary structure emanating from the A-nucleus, which we interpret as an outflow that extends up to at least 14 arcsec from the A-nucleus in the N-S direction (≈5 kpc deprojected size) and accounts for almost 40% of the extended emission of the entire galaxy system. We also discuss HST/NICMOS [FeII] 1.64 μm and H 2 2.12 μm images of Arp 299-A, which show similar features to those unveiled by our 150 MHz LOFAR observations, providing strong morphological support for the outflow scenario. Finally, we discuss unpublished Na I D spectra that confirm the outflow nature of this structure. From energetic arguments, we rule out the low-luminosity active galactic nucleus in Arp 299-A as a driver for the outflow. On the contrary, the powerful, compact starburst in the central regions of Arp 299-A provides plenty of mechanical energy to sustain an outflow, and we conclude that the intense supernova (SN) activity in the nuclear region of Arp 299-A is driving the observed outflow. We estimate that the starburst wind can support a mass-outflow rate in the range (11-63 M ⊙ yr -1 ) at speeds of up to 370-890 km s -1 , and is relatively young, with an estimated kinematic age of 3-7 Myr. Those results open an avenue to the use of low-frequency (150 MHz), sub-arcsecond imaging with LOFAR to detect outflows in the central regions of local luminous infrared galaxies.
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
650 7a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk bildbehandling0 (SwePub)206032 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Medical Engineeringx Medical Image Processing0 (SwePub)206032 hsv//eng
653 a ISM jets and outflows
653 a Galaxies
653 a Starburst
653 a Radio continuum galaxies
653 a Individual Arp 299
653 a Galaxies star formation galaxies
7001 a Varenius, Eskil,d 1986u University of Manchester4 aut0 (Swepub:cth)varenius
7001 a Pérez-Torres, M.A.u Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA),Universidad de Zaragoza,University of Zaragoza4 aut
7001 a Alberdi, Antxonu Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)4 aut
7001 a Pérez, E.u Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)4 aut
7001 a Alonso-Herrero, A.u Centro de Astrobiologia (CAB)4 aut
7001 a Deller, A.u Swinburne University of Technology4 aut
7001 a Herrero-Illana, R.u European Southern Observatory Santiago4 aut
7001 a Moldon, J.u University of Manchester4 aut
7001 a Barcos-Munoz, Loretou Atacama Large Millimeter-submillimeter Array (ALMA),National Radio Astronomy Observatory4 aut
7001 a Marti-Vidal, Ivan,d 1980u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)mivan
7102 a Instituto de Astrofisica de Andalucía (IAA)b University of Manchester4 org
7730 t Astronomy and Astrophysicsd : EDP Sciencesg 610q 610x 0004-6361x 1432-0746
8564 u https://research.chalmers.se/publication/501430/file/501430_Fulltext.pdfx primaryx freey FULLTEXT
8564 u https://www.aanda.org/articles/aa/pdf/2018/02/aa32543-17.pdf
8564 8u https://research.chalmers.se/publication/501430
8564 8u https://doi.org/10.1051/0004-6361/201732543

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