|
|
| |
| Herschel Detects a Massive Dust Reservoir in Supernova 1987A |
| |
|
We report a surprising detection of the supernova 1987A at far-infrared and
submillimetre (submm) wavelengths in 2010. As a part of the Herschel Large and
Small Magellanic Cloud surveys (HERITAGE; principal investigator Margaret Meixner),
the Herschel Space Observatory scanned the sky in the direction of SN 1987A, and
found a faint but clear point source. The source was detected at four wavelength
bands from 100 to 350 microns. The smooth spectral energy distribution shows a
continuous shape peaking near 200 microns and we conclude that the far-
infrared/submm signature is due to thermal dust emission. The estimated dust mass
is between 0.5-0.7 solar mass, which is limited by the available elemental mass
synthesised in the SN. This new detection by Herschel implies that supernovae can
contribute to the overall dust-mass input in the interstellar medium of galaxies. |
|
| |
|
| Id: |
306 |
| Place: |
AlbaNova University Center
Room: Oskar Klein |
| Starting date: |
|
| Duration: |
25' |
| Primary Authors: |
Dr. MATSUURA, Mikako (University College London) |
| Co-Authors: |
Dr. DWEK, Eli (NASA Goddard Space Flight Center)
Dr. MEIXNER, Margaret (Space Telescope Science Institute)
Dr. OTSUKA, Masaaki (Space Telescope Science Institute)
Dr. BABLER, Brian (University of Wisconsin)
Prof. BARLOW, Mike (University College London)
Dr. ROMAN-DUVAL, Julia (Space Telescope Science Institute)
Dr. ENGELBRACHT, Chad (University of Arizona)
Dr. SANDSTROM, Karin (Max Planck Institut für Astronomie)
Ms. LAKICEVIC, Masha (Keele University)
Dr. VAN LOON, Jacco (Keele University)
Dr. SONNEBORN, George (NASA Goddard Space Flight Center)
Prof. CLAYTON, Geoff (Louisiana State University)
Dr. LONG, Knox (Space Telescope Science Institute)
Prof. LUNDQVIST, Peter (Stockholm University)
Dr. NOZAWA, Takaya (University of Tokyo)
Dr. GORDON, Karl (Space Telescope Science Institute)
Dr. HONY, Sacha (CEA)
Dr. OKUMURA, Koryo (CEA)
Dr. MISSELT, Karl (University of Arizona)
Dr. MONTIEL, E (University of Arizona)
Dr. SAUVAGE, Marc (CEA) |
| Presenters: |
Dr. MATSUURA, Mikako |
| |
| Included in session: |
SN 1987A, cont'd |
| |
|
|
|
|
|
|
Overview