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| Query : 2017MNRAS.471.1737F |
2017MNRAS.471.1737F - Mon. Not. R. Astron. Soc., 471, 1737-1742 (2017/October-3)
Search for the γ-ray emission from M33 with the Fermi Large Area Telescope.
FU L., XIA Z.Q. and SHEN Z.Q.
Abstract (from CDS):
We searched for the γ-ray signal from M33, one of the largest galaxies in the Local Group, using the Pass8 data from the Fermi Large Area Telescope (LAT). No statistically significant γ-ray emission has been detected in the direction of M33, and we report a new upper limit of the high-energy ( > 100 MeV) photon flux of 2.3 x 10^- 9^ ph cm^- 2^ s^- 1^, which is stricter than previous constraints and implies a cosmic ray density for M33 that is lower than that suggested previously. The current limit is still, however, in agreement with the correlation of star formation rate and γ-ray luminosity inferred from the Local group galaxies and a few nearby starburst galaxies.
Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
Journal keyword(s): galaxies: individual: M33 - gamma rays: galaxies - gamma rays: galaxies
Simbad objects: 10
| Number of rows : 10 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M 31 | AGN | 00 42 44.330 | +41 16 07.50 | 4.86 | 4.36 | 3.44 | ~ | 12648 | 1 | ||
| 2 | NGC 253 | SyG | 00 47 33.134 | -25 17 19.68 | 8.03 | 6.94 | 8.1 | ~ | 3336 | 2 | ||
| 3 | NAME SMC | G | 00 52 38.0 | -72 48 01 | 2.79 | 2.2 | ~ | 11148 | 1 | |||
| 4 | M 33 | GiG | 01 33 50.8965749232 | +30 39 36.630403128 | 6.17 | 6.27 | 5.72 | ~ | 5838 | 1 | ||
| 5 | NAME Magellanic Clouds | GrG | 03 00 | -71.0 | ~ | 7066 | 0 | |||||
| 6 | NAME LMC | G | 05 23 34.6 | -69 45 22 | 0.4 | ~ | 17434 | 0 | ||||
| 7 | NGC 2146 | SBG | 06 18 37.710 | +78 21 25.27 | 11.67 | 11.38 | 10.59 | ~ | 721 | 2 | ||
| 8 | M 82 | AGN | 09 55 52.430 | +69 40 46.93 | 9.61 | 9.30 | 8.41 | ~ | 5860 | 6 | ||
| 9 | IC 4553 | SyG | 15 34 57.22396 | +23 30 11.6084 | 14.76 | 13.88 | ~ | 2961 | 4 | |||
| 10 | NAME Local Group | GrG | ~ | ~ | ~ | 8390 | 0 |
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