Seminari


Seminars are organized jointly by the Trieste Astronomical Observatory (INAF/OATS) and the Astronomy Unit of the Physics Dept. of the Trieste University (UNI/TS). They usually take place on Wednesdays at 11:30, in the seminar room (Sala Ovale) of Villa Bazzoni in via Bazzoni 2, TS.

 
NEXT SEMINARS:  
 

Wed,  DEC 11, 2019 
SPEAKER: Patrice Bouchet (Department d'Astrophysique CEA (Commissariat à l’énergie atomique et aux énergies alternatives), Paris Saclay, FR)
TITLE: Current difficulties in understanding the SED of the young SNR 1987A - How the JWST will help


ABSTRACT: The explosion of SN 1987A in the LMC on February 23, 1987, generated a real outburst among many astronomers who gave to this once-in-a-life-time event the importance it deserved. I will single out the exceptional temporal coverage of the observations conducted in the infrared, and their importance in understanding the physical phenomena that accompanied the evolution of the supernova. I will give a brief summary of the main results yield at ESO, enlightening in particular (i) the building of the most complete and accurate bolometric light curve ever obtained from a supernova and the recent issues raised recently about it, (ii) the discovery of dust condensation in the ejecta, and (iii) the first estimates of chemical abundances. Observations are continuing with their set of surprises and puzzles, as was the detection of a large amount of very cold dust in the ejecta, the identification of a warmer dust component coexisting with silicates in the inner equatorial ring (ER), and the new challenges related to the Spectral Energy Distribution (SED) based on the recent observations. I will present up-to-date results from observations carried out with ALMA, Spitzer and SOFIA, emphasizing the on-going dust destruction process in the ER. Finally, I will discuss the observations of SNR 1987A which will be carried out by the James Webb Space Telescope, as part of the JWST/MIRI team guarantee time.

contact: John Danziger
 

 


 
  
COMING SEMINARS

PAST SEMINARS
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ORGANIZATION:

Seminar organizers:
Elena Mason: Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.
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Pierluigi Monaco: Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.

Seminar logistic:
Gabriella Schiulaz and Simonetta Fabrizio: Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.

Should you wish to give a talk at OATS, please feel free to contact the organizers.
Should you be one of our next speakers and need any travel and/or logistic information, please contact our Seminar logistic.
Please find here the Speaker's Vademecum, in preparation for your coming visit at OATS.