CaltechAUTHORS
  A Caltech Library Service

The peculiar planetary nebula in M22

Cohen, J. G. and Gillett, F. C. (1989) The peculiar planetary nebula in M22. Astrophysical Journal, 346 . pp. 803-807. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20190603-153223981

[img] PDF - Published Version
See Usage Policy.

517Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190603-153223981

Abstract

The source discovered by the IRAS satellite near the center of the globular cluster M22, IRAS 18333-2357, has been studied using the IUE satellite and a ground-based optical telescope. The northern component of the close pair of stars is not a member of the cluster. The southern component is a hot star with T_(eff) ≈ 50,000 K illuminating a small planetary nebula and is a member of M22. Both the planetary nebula and its central star are extremely hydrogen deficient. The luminosity of the central star is in good agreement with that expected on theoretical grounds and with the observed luminosity of the tip of the red giant branch.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1086/168061DOIArticle
http://adsabs.harvard.edu/abs/1989ApJ...346..803CADSArticle
ORCID:
AuthorORCID
Cohen, J. G.0000-0002-8039-4673
Additional Information:© American Astronomical Society • Provided by the NASA Astrophysics Data System. Received 1989 February 17; accepted 1989 May 15. Partial support by NASA through JPL is acknowledged by F. C. G., J. G. C. is grateful for support from NASA grant NAG 5-958 and from the Caltech Recycling Center.
Funders:
Funding AgencyGrant Number
NASA/JPLUNSPECIFIED
NASANAG 5-958
Caltech Recycling CenterUNSPECIFIED
Subject Keywords:clusters: globular — infrared: sources — nebulae: planetary — ultraviolet: spectra
Record Number:CaltechAUTHORS:20190603-153223981
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190603-153223981
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96075
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:04 Jun 2019 20:13
Last Modified:03 Oct 2019 21:19

Repository Staff Only: item control page