Search: onr:"swepub:oai:DiVA.org:su-51699" >
PACS and SPIRE spec...
PACS and SPIRE spectroscopy of the red supergiant VY CMa
- Article/chapterEnglish2010
Publisher, publication year, extent ...
-
2010-07-16
-
EDP Sciences,2010
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:su-51699
-
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-51699URI
-
https://doi.org/10.1051/0004-6361/201014641DOI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
authorCount :37
-
With a luminosity > 10(5) L-circle dot and a mass-loss rate of similar to 2 x 10(-4) M-circle dot yr(-1), the red supergiant VY CMa truly is a spectacular object. Because of its extreme evolutionary state, it could explode as supernova any time. Studying its circumstellar material, into which the supernova blast will run, provides interesting constraints on supernova explosions and on the rich chemistry taking place in such complex circumstellar envelopes. We have obtained spectroscopy of VY CMa over the full wavelength range offered by the PACS and SPIRE instruments of Herschel, i.e. 55-672 micron. The observations show the spectral fingerprints of more than 900 spectral lines, of which more than half belong to water. In total, we have identified 13 different molecules and some of their isotopologues. A first analysis shows that water is abundantly present, with an ortho-to-para ratio as low as similar to 1.3:1, and that chemical non-equilibrium processes determine the abundance fractions in the inner envelope.
Subject headings and genre
-
line: identification
-
stars: chemically peculiar
-
circumstellar matter
-
stars: mass-loss
-
supergiants
Added entries (persons, corporate bodies, meetings, titles ...)
-
Decin, L.
(author)
-
Wesson, R.
(author)
-
Barlow, M. J.
(author)
-
Polehampton, E. T.
(author)
-
Matsuura, M.
(author)
-
Agundez, M.
(author)
-
Blommaert, J. A. D. L.
(author)
-
Cernicharo, J.
(author)
-
Cohen, M.
(author)
-
Daniel, F.
(author)
-
Degroote, P.
(author)
-
De Meester, W.
(author)
-
Exter, K.
(author)
-
Feuchtgruber, H.
(author)
-
Gear, W. K.
(author)
-
Gomez, H. L.
(author)
-
Groenewegen, M. A. T.
(author)
-
Hargrave, P. C.
(author)
-
Huygen, R.
(author)
-
Imhof, P.
(author)
-
Ivison, R. J.
(author)
-
Jean, C.
(author)
-
Kerschbaum, F.
(author)
-
Leeks, S. J.
(author)
-
Lim, T.
(author)
-
Lombaert, R.
(author)
-
Olofsson, GöranStockholms universitet,Institutionen för astronomi(Swepub:su)olofsson
(author)
-
Posch, T.
(author)
-
Regibo, S.
(author)
-
Savini, G.
(author)
-
Sibthorpe, B.
(author)
-
Swinyard, B. M.
(author)
-
Vandenbussche, B.
(author)
-
Waelkens, C.
(author)
-
Witherick, D. K.
(author)
-
Yates, J. A.
(author)
-
Stockholms universitetInstitutionen för astronomi
(creator_code:org_t)
Related titles
-
In:Astronomy and Astrophysics: EDP Sciences518, s. L145-0004-63611432-0746
Internet link
Find in a library
To the university's database
- By the author/editor
-
Royer, P.
-
Decin, L.
-
Wesson, R.
-
Barlow, M. J.
-
Polehampton, E. ...
-
Matsuura, M.
-
show more...
-
Agundez, M.
-
Blommaert, J. A. ...
-
Cernicharo, J.
-
Cohen, M.
-
Daniel, F.
-
Degroote, P.
-
De Meester, W.
-
Exter, K.
-
Feuchtgruber, H.
-
Gear, W. K.
-
Gomez, H. L.
-
Groenewegen, M. ...
-
Hargrave, P. C.
-
Huygen, R.
-
Imhof, P.
-
Ivison, R. J.
-
Jean, C.
-
Kerschbaum, F.
-
Leeks, S. J.
-
Lim, T.
-
Lombaert, R.
-
Olofsson, Göran
-
Posch, T.
-
Regibo, S.
-
Savini, G.
-
Sibthorpe, B.
-
Swinyard, B. M.
-
Vandenbussche, B ...
-
Waelkens, C.
-
Witherick, D. K.
-
Yates, J. A.
-
show less...
- Articles in the publication
-
Astronomy and As ...
- By the university
-
Stockholm University