Back to Main Page
Observation Date (UT) Observation Lat

Canonical Name:1ES 0033+595
TeVCat Name:TeV J0035+598
Other Names:
Source Type:HBL
R.A.:00 35 16.8 (hh mm ss)
Dec.:+59 47 24.0 (dd mm ss)
Gal Long: 120.90 (deg)
Gal Lat: -3.02 (deg)
Distance: z=0.467
Flux:0.015 (Crab Units)
Energy Threshold:150 GeV
Spectral Index:3.8
Discovery Date:2011-10
Discovered By: MAGIC
TeVCat SubCat:Default Catalog

Source Notes:

141028: This source was moved to the Default Catalog.

Positional Information:
From Aleksic et al. (2014):
- The position was updated to this one on 141029:
- R.A. (J2000): 00 35 16.8
- Dec. (J2000): +59 47 24.0
- "The fitted position of the signal is RA: 0.588 +/- 0.002 h and
DEC: 59.79 +/- 0.02 deg (J2000.0), which, when taking into account the
weakness and steepness of the source and the systematic uncertainty in
the pointing position of the MAGIC stereo system, is consistent with
the catalog cordinates reported in Giommi et al. (2002)"

From Mariotti (2011):
- R.A. (J2000): 00:35:52.63
- Dec. (J2000): 59:50:04.56
- very close to SIMBAD position
- no uncertainty quoted on the position

Spectral Information:
From Aleksic et al. (2014):
- spectral index: 3.8 +/- 0.7(stat) +/- 0.3(syst)
- for an energy range between 125 GeV and 500 GeV

The redshift was updated from unknown to z = 0.467 on 170119 (see details below)

From Paiano et al. (2016):
"We found an emission feature at 5468 Ang of EW = 0.4 A. This feature
is detected in all three individual spectra and therefore we consider
it a secure detection. If identified as [OII] 3727 Ang emission, a
tentative redshift of z = 0.467 can be provided."
From Aleksic et al. (2014):
- using the method of Prandini et al. (2010), "a value of
z = 0.58 +/- 0.12 is obtained which corresponds to an upper limit on the redshift."
- "An estimate of the likely redshift can be obtained using the
inverse formula of Prandini et al. (2010), resulting in
z = 0.34 +/- 0.08 +/- 0.05, where the first error (0.08) was
calculated based on the uncertainties in photon indices of the source
spectra measured by MAGIC and Fermi LAT, while the second error (0.05)
is the method uncertainty, which comes from the spread in the results
after applying the method to known redshift sources.

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