VVV-WIT-01: highly obscured classical nova or protostellar collision?
dc.contributor.author | Lucas, P. W. | |
dc.contributor.author | Minniti, D. | |
dc.contributor.author | Kamble, A. | |
dc.contributor.author | Kaplan, D. L. | |
dc.contributor.author | Cross, N. | |
dc.contributor.author | Dekany, I. | |
dc.contributor.author | Ivanov, V. D. | |
dc.contributor.author | Kurtev, R. | |
dc.contributor.author | Saito, R. K. | |
dc.contributor.author | Smith, L. C. | |
dc.contributor.author | Catelan, M. | |
dc.contributor.author | Masetti, N. | |
dc.contributor.author | Toledo, I. | |
dc.contributor.author | Hempel, M. | |
dc.contributor.author | Thompson, M. A. | |
dc.contributor.author | Peña, C. Contreras | |
dc.contributor.author | Forbrich, J. | |
dc.contributor.author | Krause, M. | |
dc.contributor.author | Dale, J. | |
dc.contributor.author | Borissova, J. | |
dc.contributor.author | Emerson, J.P. | |
dc.date.accessioned | 2020-02-07T01:06:40Z | |
dc.date.available | 2020-02-07T01:06:40Z | |
dc.date.issued | 2020-03 | |
dc.identifier.citation | Lucas , P W , Minniti , D , Kamble , A , Kaplan , D L , Cross , N , Dekany , I , Ivanov , V D , Kurtev , R , Saito , R K , Smith , L C , Catelan , M , Masetti , N , Toledo , I , Hempel , M , Thompson , M A , Peña , C C , Forbrich , J , Krause , M , Dale , J , Borissova , J & Emerson , J P 2020 , ' VVV-WIT-01: highly obscured classical nova or protostellar collision? ' , Monthly Notices of the Royal Astronomical Society , vol. 492 , no. 4 , pp. 4847–4857 . https://doi.org/10.1093/mnras/staa155 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2001.05536v1 | |
dc.identifier.other | ORCID: /0000-0001-5392-909X/work/68611415 | |
dc.identifier.other | ORCID: /0000-0002-8872-4462/work/68611478 | |
dc.identifier.other | ORCID: /0000-0002-9610-5629/work/68611751 | |
dc.identifier.other | ORCID: /0000-0001-5252-5771/work/68611752 | |
dc.identifier.other | ORCID: /0000-0001-8694-4966/work/68611754 | |
dc.identifier.uri | http://hdl.handle.net/2299/22166 | |
dc.description | © 2020 The Author(s). | |
dc.description.abstract | A search of the first Data Release of the VISTA Variables in the Via Lactea (VVV) Survey discovered the exceptionally red transient VVV-WIT-01 (H-Ks=5.2). It peaked before March 2010, then faded by ~9.5 mag over the following two years. The 1.6-22 µm spectral energy distribution in March 2010 was well fit by a highly obscured black body with T ~ 1000 K and AKs ~ 6.6 mag. The source is projected against the Infrared Dark Cloud (IRDC) SDC G331.062-0.294. The chance projection probability is small for any single event (p ≈ 0.01 to 0.02) which suggests a physical association, e.g. a collision between low mass protostars. However, black body emission at T ~ 1000 K is common in classical novae (especially CO novae) at the infrared peak in the light curve, due to condensation of dust ~30-60 days after the explosion. Radio follow up with the Australia Telescope Compact Array (ATCA) detected a fading continuum source with properties consistent with a classical nova but probably inconsistent with colliding protostars. Considering all VVV transients that could have been projected against a catalogued IRDC raises the probability of a chance association to p=0.13 to 0.24. After weighing several options, it appears likely that VVV-WIT-01 was a classical nova event located behind an IRDC. | en |
dc.format.extent | 11 | |
dc.format.extent | 3040829 | |
dc.format.extent | 2894371 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | astro-ph.SR | |
dc.subject | astro-ph.GA | |
dc.title | VVV-WIT-01: highly obscured classical nova or protostellar collision? | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/staa155 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true |