2005A&A...435..625P


Query : 2005A&A...435..625P

2005A&A...435..625P - Astronomy and Astrophysics, volume 435, 625-630 (2005/5-4)

On the local birth place of Geminga.

PELLIZZA L.J., MIGNANI R.P., GRENIER I.A. and MIRABEL I.F.

Abstract (from CDS):

Using estimates of the distance and proper motion of Geminga and the constraints on its radial velocity posed by the shape of its bow shock, we investigate its birth place by tracing its space motion backwards in time. Our results exclude the {lambda} Ori association as the origin site because of the large distance between both objects at any time. Our simulations place the birth region at approximately 90-240pc from the Sun, between 197° and 199° in Galactic longitude and -16° and -8° in latitude, most probably inside the Cas-Tau OB association or the Ori OB1a association. We discard the possibility of the progenitor being a massive field star. The association of Geminga with either stellar association implies an upper limit of M≃15M for the mass of its progenitor. We also propose new members for the Cas-Tau and Ori OB1 associations.

Abstract Copyright:

Journal keyword(s): stars: neutron - pulsars: general - pulsars: individual: Geminga - solar neighbourhood

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3208 0
2 NAME Cas-Tau As* 04 16 +27.6           ~ 69 1
3 * lam Ori ** 05 35 08.27761 +09 56 02.9611 2.45 3.48 3.66 3.72 3.89 O8IIIf+B0.5V 285 0
4 Cl Collinder 69 OpC 05 35 10 +09 48.8     2.8     ~ 275 0
5 NAME Ori I As* 05 38 -02.8           ~ 585 0
6 NAME Geminga Psr 06 33 54.153 +17 46 12.91           ~ 1148 0
7 NAME Gould Belt PoG ~ ~           ~ 806 1
8 NAME Local Bubble ISM ~ ~           ~ 796 0

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2022.08.15-14:46:47

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