The Planetary Nebula in the 500 Myr Old Open Cluster M37
Por:
Fragkou, Vasiliki, Parker, Quentin A., Zijlstra, Albert A., VAZQUEZ, ROBERTO, Sabin, Laurence, Suzett Rechy-Garcia, Jackeline
Publicada:
1 ago 2022
Resumen:
We report confirmation of a large, evolved, bipolar planetary nebula and
its blue, white dwarf central star as a member of the similar to 500 Myr
old Galactic open star cluster M37 (NGC 2099). This is only the third
known example of a planetary nebula in a Galactic open cluster and was
found via our ongoing program of identifying and studying planetary
nebulae-open cluster associations. High confidence in the association
comes from the consistent radial velocities and proper motions for the
confirmed central star and cluster stars from Gaia, reddening agreement,
and location of the planetary nebula well within the tidal cluster
boundary. Interestingly, all three Galactic examples have bipolar
morphology and likely Type-I chemistry, both characteristics of higher
mass progenitors. In this case the progenitor star mass is in the
midrange of similar to 2.8 M (☉). It provides a valuable,
additional point on the key stellar initial-to-final mass relation
independent of cluster white dwarf estimates and also falls in a gap in
the poorly sampled mass region. This planetary nebula also appears to
have the largest kinematical age ever determined and implies increased
visibility lifetimes when they are located in clusters.
Filiaciones:
Fragkou, Vasiliki:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22800, Baja California, Mexico
Parker, Quentin A.:
Univ Hong Kong, Dept Phys, Chong Yuet Ming Phys Bldg,Pokfulam Rd, Hong Kong, Peoples R China
Univ Hong Kong, Lab Space Res, Cyberport, 405B Cyberport 4,100 Cyberport Rd, Hong Kong, Peoples R China
Zijlstra, Albert A.:
Univ Hong Kong, Lab Space Res, Cyberport, 405B Cyberport 4,100 Cyberport Rd, Hong Kong, Peoples R China
Univ Manchester, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England
VAZQUEZ, ROBERTO:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22800, Baja California, Mexico
Sabin, Laurence:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22800, Baja California, Mexico
Suzett Rechy-Garcia, Jackeline:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Morelia 58089, Michoacan, Mexico
Green Submitted, gold, Gold
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