One arc-minute resolution maps of the Orion Nebula at 20, 50, and 100 microns

Abstract

view Abstract Citations (214) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS One arc-minute resolution maps of the Orion nebula at 20, 50, and 100 microns. Werner, M. W. ; Gatley, I. ; Harper, D. A. ; Becklin, E. E. ; Loewenstein, R. F. ; Telesco, C. M. ; Thronson, H. A. Abstract The paper presents maps of the central regions of the Orion Nebula which are based on observations made at wavelengths of 20, 50, and 100 microns with a resolution of 1 arcmin. The 50- and 100-micron observations were made with the NASA 91-cm Airborne Infrared Telescope. The principal far-IR features observed include a sharp emission peak near the position of the IR cluster, about 1 arcmin northwest of the Trapezium; a ridge of emission that is elongated north-south about this peak; and a barlike feature running northeast to southwest about 2 arcmin southeast of the Trapezium. The following conclusions are reached about the nature of the far-IR emission: (1) the total luminosity (between 10 and 1000 microns) of the IR cluster exceeds the solar luminosity by a factor of at least 120,000; (2) heating by both the IR cluster and the Trapezium stars is important in producing the central emission ridge; (3) the IR cluster is located within the molecular cloud; (4) the Trapezium stars are no more than 0.1 pc from that cloud; and (5) the bar of emission southeast of the Trapezium can be identified with an optically visible ionization front. Publication: The Astrophysical Journal Pub Date: March 1976 DOI: 10.1086/154185 Bibcode: 1976ApJ...204..420W Keywords: Astronomical Maps; Brightness Temperature; Hydrogen Clouds; Infrared Astronomy; Nebulae; Star Clusters; Stellar Evolution; Airborne Equipment; Far Infrared Radiation; Main Sequence Stars; Millimeter Waves; Stellar Luminosity; Telescopes; Astrophysics full text sources ADS |