Astronomy:HD 150193

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Coordinates: Sky map 16h 40m 17.9243s, −23° 53′ 45.1927″

Short description: Young binary star system in the constellation Ophiuchus
HD 150193
V2307OphLightCurve.png
A visual band light curve for V2307 Ophiuchi, plotted from ASAS-SN data[1]
Observation data
{{#ifeq:J2000|J2000.0 (ICRS)|Epoch J2000.0      Equinox J2000.0 (ICRS)| [[History:Epoch|Epoch J2000]]      [[Astronomy:Equinox (celestial coordinates)|Equinox J2000}}
Constellation Ophiuchus
HD 150193A
Right ascension  16h 40m 17.9243s[2]
Declination −23° 53′ 45.193″[2]
Apparent magnitude (V) 8.79[3]
HD 150193B
Right ascension  16h 40m 17.8688s[4]
Declination −23° 53′ 45.966″[4]
Apparent magnitude (V) 12.3[5]
Characteristics
HD 150193A
Spectral type A1Ve[6]
Variable type Orion[7]
HD 150193B
Spectral type F9Ve[8]
Variable type T Tau[5]
Astrometry
HD 150193A
Proper motion (μ) RA: −4.935[2] mas/yr
Dec.: −19.046[2] mas/yr
Parallax (π)6.6313 ± 0.0211[2] mas
Distance492 ± 2 ly
(150.8 ± 0.5 pc)
HD 150193B
Proper motion (μ) RA: −9.247 mas/yr
Dec.: −18.250 mas/yr
Parallax (π)6.7543 ± 0.1032[4] mas
Distance483 ± 7 ly
(148 ± 2 pc)
Position (relative to HD 150193A)[9]
ComponentHD 150193B
Angular distance1.10±0.03″
Position angle225.0±0.8°
Observed separation
(projected)		166 AU
Details
HD 150193A
Mass2.2[6] M☉
Radius2.0[6] R☉
Luminosity91.8±1.1[8] L☉
Surface gravity (log g)4.11[2] cgs
Temperature9,000[6] K
Rotation1.317 d[10]
Rotational velocity (v sin i)100[6] km/s
Age7+2−1[8] Myr
HD 150193B
Mass1.2±0.2[8] M☉
Luminosity1.35[8] L☉
Temperature6,166[5] K
Age>10[8] Myr
Other designations
CD−23°12887, HD 150193, HIP 81624, SAO 184536, GSC 06796-01287, 2MASS J16401792-2353452, V2307 Oph[3]
Database references
SIMBADdata

HD 150193 is a binary star system in the constellation of Ophiuchus. The primary star was identified as a Herbig Ae/Be star with a strong solar wind, losing approximately a tenth of solar mass per million years.[6] It does host a very small debris disk, likely due to disk truncation by the nearby stellar companion.[11] The disk is inclined 38±9° to the plane of sky. It appears to be highly evolved and asymmetric,[12] with indications of flattening and grains growth.[9]

The companion HD 150193B, is a T Tauri young star[5] with a projected separation of 166 AU.[9]

The binary HD 150193 is part of the Upper Scorpius subgroup of Scorpius–Centaurus star-forming region.[citation needed]

References

  1. ↑ "ASAS-SN Variable Stars Database". ASAS-SN. https://asas-sn.osu.edu/variables/lookup. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 "HD 150193". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+150193. 
  4. ↑ 4.0 4.1 4.2 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  5. ↑ 5.0 5.1 5.2 5.3 Carmona, A.; Van Den Ancker, M. E.; Henning, Th. (2007). "Optical spectroscopy of close companions to nearby Herbig Ae/Be and T Tauri stars". Astronomy & Astrophysics 464 (2): 687–695. doi:10.1051/0004-6361:20065509. Bibcode: 2007A&A...464..687C. 
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 Pogodin, M.A.; Hubrig, S.; Yudin, R.V.; Schöller, M.; Gonzälez, J.F.; Stelzer, B. (2012). "Measuring the mass accretion rates of Herbig Ae/Be stars with X-shooter". Astronomische Nachrichten 333 (7): 594–612. doi:10.1002/asna.201211706. Bibcode: 2012AN....333..594P. 
  7. ↑ Samus, N. N. et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1: B/gcvs. Bibcode: 2009yCat....102025S. 
  8. ↑ 8.0 8.1 8.2 8.3 8.4 8.5 Varga, J.; Ábrahám, P.; Chen, L.; Ratzka, Th.; Gabányi, K. É.; Kóspál, Á.; Matter, A.; Van Boekel, R. et al. (2018). "VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects". Astronomy & Astrophysics 617: A83. doi:10.1051/0004-6361/201832599. Bibcode: 2018A&A...617A..83V. 
  9. ↑ 9.0 9.1 9.2 Fukagawa, Misato; Tamura, Motohide; Itoh, Yoichi; Oasa, Yumiko; Kudo, Tomoyuki; Hayashi, Saeko S.; Kato, Eri; Ootsubo, Takafumi et al. (2010). "Subaru Near-Infrared Imaging of Herbig Ae Stars". Publications of the Astronomical Society of Japan 62 (2): 347. doi:10.1093/pasj/62.2.347. Bibcode: 2010PASJ...62..347F. 
  10. ↑ Hubrig, S.; Schöller, M.; Ilyin, I.; Cowley, C. R.; Mikulášek, Z.; Stelzer, B.; Pogodin, M. A.; Yudin, R. V. et al. (2011). "Characterising the magnetic fields of the Herbig Ae/Be stars HD 97048, HD 150193, HD 176386, and MWC 480". Astronomy and Astrophysics 536: A45. doi:10.1051/0004-6361/201117407. Bibcode: 2011A&A...536A..45H. 
  11. ↑ Monnier, John D.; Harries, Tim J.; Aarnio, Alicia; Adams, Fred C.; Andrews, Sean; Calvet, Nuria; Espaillat, Catherine; Hartmann, Lee et al. (2017). "Polarized Disk Emission from Herbig Ae/Be Stars Observed Using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142". The Astrophysical Journal 838 (1): 20. doi:10.3847/1538-4357/aa6248. Bibcode: 2017ApJ...838...20M. 
  12. ↑ Kluska, J.; Berger, J.-P.; Malbet, F.; Lazareff, B.; Benisty, M.; Le Bouquin, J.-B.; Absil, O.; Baron, F. et al. (2020). "A family portrait of disk inner rims around Herbig Ae/Be stars". Astronomy & Astrophysics 636: A116. doi:10.1051/0004-6361/201833774. Bibcode: 2020A&A...636A.116K. 



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