A Three-dimensional View of Molecular Hydrogen in SN 1987A

Autor: Haley Louise Gomez, Claes Fransson, Remy Indebetouw, Jason Spyromilio, Josefin Larsson, F. J. Abellan, Mikako Matsuura, Bruno Leibundgut, Phil Cigan

Publikováno v: The Astrophysical Journal

SN 1987A is the only young supernova (SN) in which H2 has been detected in the ejecta. The properties of H2 are important for understanding the explosion and the ejecta chemistry. Here we present new Very Large Telescope/SINFONI observations of H2 in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6ed6f9f3b791236245cd824b3d08dce
https://orca.cardiff.ac.uk/id/eprint/119065/1/h2_87a_r1.pdf

VLTI/AMBER spectro-interferometry of the late-type supergiants V766 Cen (=HR 5171 A), σ Oph, BM Sco, and HD 206859

Autor: J. M. Marcaide, F. J. Abellan, B. Arroyo-Torres, Markus Wittkowski, Andrea Chiavassa, J. C. Guirado

Publikováno v: Digital.CSIC: Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
Digital.CSIC. Repositorio Institucional del CSIC
instname

Aims. We add four warmer late-type supergiants to our previous spectro-interferometric studies of red giants and supergiants. Methods. We measure the near-continuum angular diameter, derive fundamental parameters, discuss the evolutionary stage, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::420f0e4be76237d4fffda6d5620610a3
http://hdl.handle.net/10261/243579

High Angular Resolution ALMA Images of Dust and Molecules in the SN 1987A Ejecta

Autor: Jason Spyromilio, Sangwook Park, Giovanna Zanardo, Bryan Gaensler, Patrick F. Roche, M. J. Barlow, Jacco Th. van Loon, Remy Indebetouw, Anita M. S. Richards, J. C. Wheeler, Phil Cigan, Hans-Thomas Janka, Patrice Bouchet, J. M. Marcaide, Timothy A. Davis, Cherry Ng, David N. Burrows, Haley Louise Gomez, Dennis Alp, Josefin Larsson, F. J. Abellan, Mikako Matsuura, Eli Dwek, Claes Fransson, Michael Gabler, Peter Lundqvist

Publikováno v: Astrophys.J.
Astrophys.J., 2019, 886, pp.51. ⟨10.3847/1538-4357/ab4b46⟩
The Astrophysical Journal
Cigan, P, Matsuura, M, Gomez, H L, Indebetouw, R, Abellán, F, Gabler, M, Richards, A, Alp, D, Davis, T, Janka, H-T, Spyromilio, J, Barlow, M J, Burrows, D, Dwek, E, Fransson, C, Gaensler, B, Larsson, J, Bouchet, P, Lundqvist, P, Marcaide, J M, Ng, C-Y, Park, S, Roche, P, Loon, J T V, Wheeler, J C & Zanardo, G 2019, ' High angular resolution ALMA images of dust and molecules in the SN 1987A ejecta ', The Astrophysical Journal, vol. 886, no. 1, 51 . https://doi.org/10.3847/1538-4357/ab4b46

We present high angular resolution (~80 mas) ALMA continuum images of the SN 1987A system, together with CO $J$=2 $\!\rightarrow\!$ 1, $J$=6 $\!\rightarrow\!$ 5, and SiO $J$=5 $\!\rightarrow\!$ 4 to $J$=7 $\!\rightarrow\!$ 6 images, which clearly res

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https://doi.org/10.3847/1538-4357/ab4b46

What causes the large extensions of red-supergiant atmospheres? Comparisons of interferometric observations with 1-D hydrostatic, 3-D convection, and 1-D pulsating model atmospheres

Autor: Bernd Freytag, Markus Wittkowski, B. Arroyo-Torres, Peter R. Wood, F. J. Abellan, J. M. Marcaide, Michael Scholz, Peter H. Hauschildt, Andrea Chiavassa

We present the atmospheric structure and the fundamental parameters of three red supergiants, increasing the sample of RSGs observed by near-infrared spectro-interferometry. Additionally, we test possible mechanisms that may explain the large observe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::648d032ce25da2a7b14b2ed206294107

ALMA spectral survey of Supernova 1987A – molecular inventory, chemistry, dynamics and explosive nucleosynthesis

Autor: J. M. Marcaide, Jeremy Yates, John C Wheeler, Patrick F. Roche, Roger A. Chevalier, Josefin Larsson, J. Th. van Loon, Haley Louise Gomez, Richard McCray, Claes Fransson, J. Kamenetzky, F. J. Abellan, I. De Looze, Serena Viti, Jason Spyromilio, Mikako Matsuura, Eli Dwek, S. E. Woosley, Margaret Meixner, Remy Indebetouw, Maarten Baes, Phil Cigan, M. J. Barlow, George Sonneborn, Chi-Yung Ng, Valentin Bujarrabal, Giovanna Zanardo, Lister Staveley-Smith, Peter Lundqvist

Publikováno v: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Monthly Notices of the Royal Astronomical Society
NASA Astrophysics Data System

We report the first molecular line survey of Supernova 1987A in the millimetre wavelength range. In the ALMA 210--300 and 340--360 GHz spectra, we detected cold (20--170 K) CO, 28SiO, HCO+ and SO, with weaker lines of 29SiO from ejecta. This is the f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b6e630f13b394bb818c757ffadfcc44