Abstract
view Abstract Citations (303) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Proper Motions and Variabilities of Stars Near the Orion Nebula Jones, B. F. ; Walker, Merle F. Abstract Relative proper motions were measured and membership probabilities were determined for over 1000 stars within 15-arcmin of the center of the Orion Nebula, M42. About 900 of the stars are associated with the Orion complex. The motions are of sufficient precision to measure the internal velocity dispersions. These dispersions are nearly isotropic, and depend only weakly on magnitude and distance from the Trapezium. The corresponding velocity dispersion in one coordinate is just over 2 km/s. The distribution of stars follows closely the distribution of gas as measured by CO-13. The stars appear to be, at most, only weakly bound to the molecular cloud. A search for variable stars has found that nearly half of the member stars are either known variables or showed variation on the plates. Publication: The Astronomical Journal Pub Date: June 1988 DOI: 10.1086/114773 Bibcode: 1988AJ.....95.1755J Keywords: Carbon Monoxide; Molecular Clouds; Orion Nebula; Stellar Motions; Variable Stars; H Ii Regions; Infrared Sources (Astronomy); Star Formation; Velocity Distribution; Astrophysics; STARS: PROPER-MOTION; PHOTOMETRY; NEBULAE: HII REGIONS full text sources ADS | data products SIMBAD (1068)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
