| Canonical Name: | Tycho |
| TeVCat Name: | TeV J0025+641 |
| Other Names: | SNR G120.1+1.4,
3C10,
SN1572 |
| Source Type: | Shell |
| R.A.: | 00 25 21.6 (hh mm ss) |
| Dec.: | +64 07 48 (dd mm ss) |
| Gal Long: | 120.09 (deg) |
| Gal Lat: | 1.40 (deg) |
| Distance: | 3.5 kpc |
| Flux: | 0.009 (Crab Units) |
| Energy Threshold: | 1000 GeV |
| Spectral Index: | 1.95 |
| Extended: | No |
| Discovery Date: | 2010-05 |
| Discovered By: | VERITAS |
| Green's Catalog: | Link |
| TeVCat SubCat: | Default Catalog |
Source Notes:
This detection was announced at the
Columbia Galactic Gamma-Ray Conference, May 2010.
The mini proceedings are available
here.
Source position:
The position in TeVCat was updated on 170208 from the position given
in
Acciari et al. (2011)
to that given in
Archambault et al. (2017)
From
Archambault et al. (2017):
- "The centroid position of the gamma-ray emission is coincident with
the center of the remnant, as well as with the centroid measurement of
Fermi–LAT above 1 GeV"
- The estimated centroid is:
- R.A. (J2000): 00h 25m 21.60s +/- 7.20s (stat)
- Dec. (J2000): +64d 07' 48" +/- 1' 12" (stat)
- systematic uncertainty on the position is 0.006 deg
From
Acciari et al. (2011):
- R.A. (J2000): 00 25 27
- Dec. (J2000): +64 10 50
- "The center of the fit position is offset by 0.04 deg
from the center of the remnant. The statistical uncertainty
in this location is 0.023 deg, while the systematic
uncertainty resulting from telescope pointing
accuracy is
0.014 deg. We note that the derived centroid position depends
also on the source shape assumed for the fit."
Distance:
- the distance quoted is a mean of the various estimates (2.5-5.0)
Spectral Properties:
From
Archambault et al. (2017):
- "The TeV spectral index measured by VERITAS is consistent with
previous results, but the expanded energy range softens a straight
power-law fit."
- Spectral index: 2.92 +/- 0.42(stat) +/- 0.20(syst)
From
Acciari et al. (2011):
- Spectral index: 1.95 +/- 0.51 (stat) +/- 0.30 (sys)
Source classification:
From
Archambault et al. (2017):
- "The results are consistent with an SNR shell origin of the emission,
as many models assume."
Seen by: VERITAS
-
A Gamma-Ray Enhancement Event in Tycho's Supernova Remnant
Xing, Yi et al., arXiv e-prints parXiv:2106.01696 (2021) [LINK]
-
Stochastic re-acceleration and magnetic-field damping in Tycho's supernova remnant
Wilhelm, A. et al., arXiv e-prints parXiv:2006.04832 (2020) [LINK]
-
Time evolution of broadband non-thermal emission from supernova remnants in different circumstellar environments
Yasuda, H. and Lee, S.-H., arXiv e-prints p (2019) [LINK]
-
GeV light curves of young supernova remnants
Petruk, O. et al., arXiv e-prints parXiv:1912.06452 (2019) [LINK]
-
On the search for Galactic supernova remnant PeVatrons with current TeV instruments
Cristofari, P. et al., ArXiv e-prints p (2018) [LINK]
-
Investigating the high-frequency spectral features of SNRs Tycho, W44 and IC443 with the Sardinia Radio Telescope
Loru, S. et al., ArXiv e-prints p (2018) [LINK]
-
Cosmic rays from supernova remnants and superbubbles
Lingenfelter, R.E., ArXiv e-prints p (2018) [LINK]
-
Gamma-ray observations of Tycho's SNR with VERITAS and Fermi
VERITAS Collaboration et al., ArXiv e-prints p (2017) [LINK]
-
An X-ray and Radio Study of the Varying Expansion Velocities in Tycho's Supernova Remnant
Williams, B.J. et al., ArXiv e-prints p (2016) [LINK]
-
Study of high-energy particle acceleration in Tycho with gamma-ray observations
Park, N. and for the VERITAS Collaboration, ArXiv e-prints p (2015) [LINK]
-
Spectra of accelerated particles at supernova shocks in the presence of neutral hydrogen: the case of Tycho
Morlino, G. and Blasi, P., ArXiv e-prints p (2015) [LINK]
-
A statistical study of Galactic SNR source spectra detected at >GeV energies
Mandelartz, M. and Becker Tjus, J., ArXiv e-prints p (2013) [LINK]
-
Study of high energy cosmic ray acceleration in Tycho SNR with VERITAS
Park, N. and for the VERITAS Collaboration, ArXiv e-prints p (2013) [LINK]
-
The nature of gamma-ray emission of Tycho's supernova remnant
Berezhko, E.G. et al., ArXiv e-prints p (2012) [LINK]
-
Gamma Rays from Cosmic Rays in Supernova Remnants
Dermer, C.D. and Powale, G., ArXiv e-prints p (2012) [LINK]
-
Unified model for the gamma-ray emission of supernova remnants
Yuan, Q. et al., ArXiv e-prints p (2012) [LINK]
-
Strong evidence for hadron acceleration in Tycho's supernova remnant
Morlino, G. and Caprioli, D., A&A 538 pA81 (2012) [LINK]
-
Evidence For Particle Acceleration to the Knee of the Cosmic Ray Spectrum in Tycho's Supernova Remnant
Eriksen, K.A. et al., ArXiv e-prints p (2011) [LINK]
-
Nonthermal Radiation from Type Ia Supernova Remnants
Edmon, P.P. et al., ArXiv e-prints p (2011) [LINK]
-
Discovery of TeV Gamma-ray Emission from Tycho's Supernova Remnant
Acciari, V.A. et al., ApJ 730 pL20+ (2011) [LINK]
-
Fermi-LAT Detection of the Young SuperNova Remnant Tycho
Giordano, F. et al., ArXiv e-prints p (2011) [LINK]
-
Detection of VER J2019+407 (G78.2+2.1) and Tycho's Supernova Remnant with VERITAS
Weinstein, A. for the VERITAS Collaboration, ArXiv e-prints p (2011) [LINK]
-
Recent Observations of Supernova Remnants with VERITAS
Weinstein, A. et al., ArXiv e-prints p (2011) [LINK]
-
Gamma Rays from the Tycho Supernova Remnant: Leptonic or Hadronic?
Atoyan, A. and Dermer, C., ArXiv e-prints p (2011) [LINK]
Want a reference added? Send a bibtex entry to
the TeVCat Team
