Back to Main Page
Observation Date (UT) Observation Lat

Canonical Name:KUV 00311-1938
TeVCat Name:TeV J0033-193
Other Names:
Source Type:HBL
R.A.:00 33 34.2 (hh mm ss)
Dec.:-19 21 33 (dd mm ss)
Gal Long: 94.17 (deg)
Gal Lat: -81.22 (deg)
Flux:0.01 (Crab Units)
Energy Threshold: GeV
Spectral Index:
Discovery Date:2012-07
Discovered By: H.E.S.S.
TeVCat SubCat:Default Catalog

Source Notes:

This source was moved from the Newly Announced to the Default catalogue on 200409

Source Discovery:
- This detection was announced in July 2012 at the Gamma 2012 meeting in
Heidelberg by Becherini (poster) and Stegmann (presentation).
- It is the H.E.S.S. Source of the month for August 2012.

Source position and its uncertainty:
- The source position is taken from NED
- R.A. (J2000): 00 33 34.2
- Dec. (J2000): -19 21 33
- No information on the positional uncertainty is available.

From Fernandez Alonso, Pichel & Rovero (2019):
- the authors use gamma-ray observations of this object to place
constraints on its redshift. Each of the main current models for the
absorption by the extragalactic background light are utilised.
- "By comparing Fermi-LAT and HESS observations from similar time
periods and under the assumption that the TeV intrinsic spectrum is a
prolongation of the GeV spectrum, we found the measured flux to be
consistent within 1 sigma errors with the absorbed flux of a source at
z=0.5 and z=0.6 depending on the EBL model."
From Pita et al. (2013):
- from spectroscopy: 0.506 <= z <= 1.54
- from imaging: z >= 0.47
From Pita et al.(2012):
- "z ≥0.506; z =0.61 not confirmed"

Seen by: H.E.S.S.
Want a reference added? Send a bibtex entry to the TeVCat Team
Try TevCat 2.0 Beta!