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Query : 2012MNRAS.422.3433L |
2012MNRAS.422.3433L - Mon. Not. R. Astron. Soc., 422, 3433-3443 (2012/June-1)
Discovery of a detached H I gas shell surrounding α Orionis.
LE BERTRE T., MATTHEWS L.D., GERARD E. and LIBERT Y.
Abstract (from CDS):
The observations confirm the previous detection of H I emission centred on α Ori, but additionally reveal for the first time a quasi-stationary detached shell of neutral atomic hydrogen ∼4 arcmin in diameter (0.24 pc at a distance of 200 pc). The detached shell appears elongated in a direction opposite to the star's space motion.
A simple model shows that this detached atomic gas shell can result from the collision of the stellar wind from α Ori with the local interstellar medium (ISM). It implies that α Ori has been losing matter at a rate of ∼1.2 {x} 10–6 M☉/yr for the past 8 {x} 104 yr.
In addition, we report the detection of atomic hydrogen associated with the far-infrared arc located 6 arcmin north-east of α Ori, which has been suggested to trace the bow shock resulting from the motion of the star through the ISM. We also report the detection by the Galaxy Evolution Explorer of a far-ultraviolet counterpart to this arc.
Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS
Journal keyword(s): circumstellar matter - stars: individual: α Ori - stars: mass-loss - supergiants - radio lines: stars
Simbad objects: 13
Number of rows : 13 |
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 | 3C 48 | QSO | 01 37 41.2996631208 | +33 09 35.080388820 | 16.62 | 16.20 | ~ | 2815 | 2 | |||
2 | * omi Cet | Mi* | 02 19 20.79210 | -02 58 39.4956 | 7.63 | 6.53 | 5.03 | M5-9IIIe+DA | 1528 | 0 | ||
3 | V* RX Lep | AB* | 05 11 22.8716317615 | -11 50 56.713575585 | 8.37 | 7.14 | 5.68 | M6III | 102 | 0 | ||
4 | ICRF J052109.8+163822 | Sy1 | 05 21 09.88596258 | +16 38 22.0515459 | 19.37 | 18.84 | 18.480 | ~ | 851 | 1 | ||
5 | QSO B0529+075 | QSO | 05 32 38.9985483000 | +07 32 43.344156480 | 19.0 | 19.00 | 17.50 | ~ | 224 | 1 | ||
6 | NAME Orion Bright Bar | reg | 05 35 22.30 | -05 24 33.0 | ~ | 874 | 0 | |||||
7 | * alf Ori | s*r | 05 55 10.30536 | +07 24 25.4304 | 4.38 | 2.27 | 0.42 | -1.17 | -2.45 | M1-M2Ia-Iab | 1671 | 0 |
8 | [TR93] 062929.46+102416.5 | Rad | 06 32 15.33 | +10 22 01.9 | ~ | 8 | 0 | |||||
9 | V* RS Cnc | S* | 09 10 38.7970163421 | +30 57 47.291122681 | 8.65 | 7.62 | 5.95 | 3.06 | 0.73 | M6S | 314 | 0 |
10 | IRC +10216 | C* | 09 47 57.40632 | +13 16 43.5648 | C9,5e | 2343 | 0 | |||||
11 | V* Y CVn | C* | 12 45 07.8260815656 | +45 26 24.926308404 | 14.03 | 7.41 | 4.87 | 3.12 | 1.74 | C-N5 | 477 | 0 |
12 | V* X Her | AB* | 16 02 39.1730141112 | +47 14 25.265335956 | 7.64 | 6.58 | M6III | 237 | 0 | |||
13 | V* V1942 Sgr | C* | 19 19 09.5936050560 | -15 54 30.030582960 | 13.53 | 9.20 | 6.86 | 5.05 | 3.67 | C-N5+ | 76 | 0 |
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