|
other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
| Query : 2003A&A...408...95M |
2003A&A...408...95M - Astronomy and Astrophysics, volume 408, 95-99 (2003/9-2)
A limit on nuclear activity in Leo A.
MEURS E.J.A.
Abstract (from CDS):
ROSAT HRI observations of Leo A are analysed in order to complement a recent X-ray survey of the centres of Local Group galaxies (Zang & Meurs, 2001ApJ...556...24Z). It is likely that high-energy cores in galaxies are indicative of some level of nuclear activity. The upper limit 0.1-2.4 keV luminosity determined for Leo A (logLX<35.77) is consistent with the results that were obtained for other small Local Group systems. Leo A represents the lowest optical luminosity Irregular galaxy in the Local Group that has been studied at X-rays. Also the ROSAT All Sky Survey data allow to derive a (less constraining) upper limit flux for this galaxy.
Abstract Copyright: ∼
Journal keyword(s): galaxies: nuclei - galaxies: individual: Leo A - galaxies: Local Group - X-rays: galaxies - X-rays: individual: Leo A
Nomenclature: Fig.1, Tables 1, 2: [M2003c] 1-NN (Nos 1-1 to 1-13) = [M2003c] JHHMMSS.ss+DDMMSS.s. Fig.2, Table 2: [M2003c] 2-N (Nos 2-1 to 2-6) = [M2003c] JHHMMSS.ss+DDMMSS.s.
Simbad objects: 19
| Number of rows : 19 |
| 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 | [M2003c] J095839.63+305057.6 | X | 09 58 39.63 | +30 50 57.6 | ~ | 1 | 0 | |||||
| 2 | [M2003c] J095844.03+305459.6 | X | 09 58 44.03 | +30 54 59.6 | ~ | 1 | 0 | |||||
| 3 | [M2003c] J095852.84+303624.8 | X | 09 58 52.84 | +30 36 24.8 | ~ | 1 | 0 | |||||
| 4 | [M2003c] J095855.94+304941.5 | X | 09 58 55.94 | +30 49 41.5 | ~ | 1 | 0 | |||||
| 5 | [M2003c] J095856.34+305237.1 | X | 09 58 56.34 | +30 52 37.1 | ~ | 1 | 0 | |||||
| 6 | [M2003c] J095859.04+305904.8 | X | 09 58 59.04 | +30 59 04.8 | ~ | 1 | 0 | |||||
| 7 | [M2003c] J095859.29+304205.1 | X | 09 58 59.32 | +30 42 10.1 | ~ | 1 | 0 | |||||
| 8 | NAME Leo A | G | 09 59 26.46 | +30 44 47.0 | 14.08 | 13.54 | 13.26 | 13.33 | ~ | 615 | 0 | |
| 9 | [M2003c] J095941.65+303346.5 | X | 09 59 41.65 | +30 33 46.5 | ~ | 1 | 0 | |||||
| 10 | [M2003c] J095944.21+305619.1 | X | 09 59 44.29 | +30 56 22.8 | ~ | 1 | 0 | |||||
| 11 | [M2003c] 1-10 | X | 09 59 45.33 | +30 46 42.3 | ~ | 1 | 0 | |||||
| 12 | [M2003c] J095953.76+305308.1 | X | 09 59 53.84 | +30 53 12.6 | ~ | 1 | 0 | |||||
| 13 | [M2003c] J095957.40+305658.6 | X | 09 59 57.40 | +30 56 58.6 | ~ | 1 | 0 | |||||
| 14 | [M2003c] J095959.93+303508.0 | X | 09 59 59.93 | +30 35 08.0 | ~ | 1 | 0 | |||||
| 15 | [M2003c] J100010.95+304718.7 | X | 10 00 10.95 | +30 47 18.7 | ~ | 1 | 0 | |||||
| 16 | NGC 3109 | AG? | 10 03 06.877 | -26 09 34.46 | 11.10 | 10.42 | 10.04 | 9.91 | ~ | 769 | 2 | |
| 17 | NAME Sgr A* | X | 17 45 40.03599 | -29 00 28.1699 | ~ | 4388 | 3 | |||||
| 18 | NGC 6822 | G | 19 44 56.199 | -14 47 51.29 | 18 | 8.1 | ~ | 1562 | 0 | |||
| 19 | NAME Local Group | GrG | ~ | ~ | ~ | 8387 | 0 |
To bookmark this query, right click on this link: simbad:objects in 2003A&A...408...95M and select 'bookmark this link' or equivalent in the popup menu