// Workers AI · dad joke modeWhat did HH 34 say to its friend? You're a gas.
| Emission nebula | |
|---|---|
| Herbig–Haro object | |
 Image of HH 34 by the Hubble Space Telescope | |
| Observation data: J2000.0 epoch | |
| Right ascension | 05h 35m 28.28s[1] |
| Declination | −06° 28′ 22.2″[1] |
| Distance | 1500[2] ly |
| Apparent magnitude (V) | 16[1] |
| Constellation | Orion |
| Designations | HH 34S, [B77] 119, [CM95] Ori A10. |
HH 34 is a Herbig–Haro object located in the Constellation of Orion at a distance of about 460 parsecs (1500 light-years). It is located inside the Orion A molecular cloud.[2] The source star is a class I protostar with a total luminosity of 45 L☉.[3]
It is notable for its highly collimated jet and very symmetric bow shocks. Two bow shocks separated by 0.44 parsecs make the primary HH 34 system. Several larger and fainter bow shocks were later discovered on either side, making the extent of the system around 3 parsecs. A bipolar jet from the young star is ramming into surrounding medium at supersonic speeds, heating the material to the point of ionization and emission at visual wavelengths. The jet blows up the dusty envelope of the star, giving rise to 0.3 parsec long molecular outflow.[3]
See also
[edit source]References
[edit source]- 1 2 3 Skiff, B. A. (October 2014), "General Catalogue of Stellar Spectral Classifications", Vizier Online Data Catalog, Bibcode:2014yCat....1.2023S
- 1 2 Reipurth, Bo; et al. (January 2002), "Hubble Space Telescope Images of the HH 34 Jet and Bow Shock: Structure and Proper Motions", The Astronomical Journal, 123 (1): 362–381, Bibcode:2002AJ....123..362R, doi:10.1086/324738
- 1 2 Bally, J. (September 2016). "Protostellar Outflows". Annual Review of Astronomy and Astrophysics. 54: 491–528. Bibcode:2016ARA&A..54..491B. doi:10.1146/annurev-astro-081915-023341.
External links
[edit source]- "HH 34". SIMBAD. Centre de données astronomiques de Strasbourg.
- "Special Stars: HH 34". Jumk.de Webprojekte.
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