ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

The first time domain experiment with Swift: monitoring of seven nearby galaxies

Journal
Date Issued
2016
Author(s)
Andreoni, I.
•
•
•
Branchesi, M.
•
•
•
•
•
DOI
Abstract
We aimed to detect a supernova (SN) shock breakout (SBO) with observations in time domain. The SBO marks the first escape of radiation from the blast wave that breaks through the photosphere of the star and launches the SN ejecta, and peaks in the ultraviolet and soft X-ray bands. The detection of a SBO allows to determine the onset of the explosion with an accuracy from a few hours to a few seconds. Using the XRT and UVOT instruments onboard the Swift satellite we carried out a weekly cadenced, six months lasting monitoring of seven nearby (distance ≤ 50Mpc) galaxies, namely NGC1084, NGC2207/IC2163, NGC 2770, NGC4303/M61, NGC 3147, NGC 3690, NGC 6754. We searched for variable/transient sources in the collected data. We found no evidence for a SN SBO event, but we discovered five objects located within the light of the sample galaxies that are variable in the X-ray and/or in the UV. Our sample galaxies are within the Universe volume that will be reached by the forthcoming advanced gravitational waves (GW) detectors (a-LIGO/a-Virgo), thus this work provides an example on how to carry out Swift surveys useful to detect the GW signal from SNe, and to detect counterparts to GW triggers.
Coverage
XIV International Conference on Topics in Astroparticle and Underground Physics (TAUP 2015)
Volume
718
Issue
7
Start page
072002
Conferenece
XIV International Conference on Topics in Astroparticle and Underground Physics (TAUP 2015)
Conferenece place
Torino, Italy
Conferenece date
7 - 11 September, 2015
Uri
Url
Issn Identifier
1742-6588
Ads BibCode
2016JPhCS.718g2002A
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

Andreoni_2016_J._Phys.%3A_Conf._Ser._718_072002.pdf

Description
Pdf editoriale
Size

1.18 MB

Format

Adobe PDF

Checksum (MD5)

c892fc9a00e286e36beef2ee5309637e