... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

... Sayh al Uhaymir (SaU) 085, a 112 g carbonaceous chondrite, was found in the desert of Oman on January 11, 2002. ... In SaU 085, the matrix /(chondrule+aggregates) ratio is 0.77, similar to Allende and Mokoia, both oxidized CV chondrites, but also similar to the reduced CV chondrites [1]. ... Some FeO-rich augites and diopsides from the SaU 085 matrix have high NiO contents similar to CK chondrites (0.7-3.3 wt% NiO) (Fig. 2), additional evidence for this oxidized type of CV chondrite. ... Fig. ...