Swift observations of GRB 050712

De Pasquale, Massımılıano; GRUPE, Dirk; POOLE, T.; BREEVELD, A.; ZANE, S.; ROSEN, S.; PAGE, M.; MASON, K.; BURROWS, D.; KRIMM, H.; GEHRELS, N.; NOUSEK, J.; ROMING, P.; KOBAYASHI, S.; ZHANG, B.

doi:10.1111/j.1365-2966.2006.10609.x

Swift observations of GRB 050712

Atıf İçin Kopyala

De Pasquale M., GRUPE D., POOLE T. S., BREEVELD A. A., ZANE S., ROSEN S. R., ...Daha Fazla

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.370, sa.4, ss.1859-1866, 2006 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 370 Sayı: 4
Basım Tarihi: 2006
Doi Numarası: 10.1111/j.1365-2966.2006.10609.x
Dergi Adı: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.1859-1866
İstanbul Üniversitesi Adresli: Hayır

Özet

We present the results of X-ray and optical observations of GRB 050712 performed by Swift. The X-ray light curve of this burst exhibits episodes of flares in the first 1000 s, the same epoch at which the UVOT detected an optical counterpart. A shallow X-ray decay, with a decay slope of alpha = -0.73, followed and lasted similar to 70 ks. This behaviour can be explained in terms of activity of the gamma-ray burst 'inner engine', with the possibility that the last flare is caused by the interaction of the ejecta with the surrounding medium.