HD 150193

A visual band light curve for V2307 Ophiuchi, plotted from ASAS-SN data[1]
Observation data
Epoch J2000      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 mas/yr[2]
Dec.: −19.046 mas/yr[2]
Parallax (π)6.6313 ± 0.0211 mas[2]
Distance492 ± 2 ly
(150.8 ± 0.5 pc)
HD 150193B
Proper motion (μ) RA: −9.247 mas/yr[4]
Dec.: −18.250 mas/yr[4]
Parallax (π)6.7543 ± 0.1032 mas[4]
Distance483 ± 7 ly
(148 ± 2 pc)
Position (relative to HD 150193A)[9]
ComponentHD 150193B
Angular distance1.10±0.03″
Position angle225.0±0.8°
Projected separation166 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.

References

  1. ↑ "ASAS-SN Variable Stars Database". ASAS-SN Variable Stars Database. ASAS-SN. Retrieved 6 January 2022.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 "HD 150193". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 30 March 2021.
  4. 1 2 3 4 5 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  5. 1 2 3 4 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. arXiv:astro-ph/0701208. Bibcode:2007A&A...464..687C. doi:10.1051/0004-6361:20065509. S2CID 14372262.
  6. 1 2 3 4 5 6 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. arXiv:1205.3732. Bibcode:2012AN....333..594P. doi:10.1002/asna.201211706. S2CID 118657267.
  7. ↑ Samus, N. N.; Durlevich, O. V.; 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. 1 2 3 4 5 6 Varga, J.; Ábrahám, P.; Chen, L.; Ratzka, Th.; Gabányi, K. É.; Kóspál, Á.; Matter, A.; Van Boekel, R.; Henning, Th.; Jaffe, W.; Juhász, A.; Lopez, B.; Menu, J.; Moór, A.; Mosoni, L.; Sipos, N. (2018). "VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects". Astronomy & Astrophysics. 617: A83. arXiv:1805.02939. Bibcode:2018A&A...617A..83V. doi:10.1051/0004-6361/201832599. S2CID 119327628.
  9. 1 2 3 Fukagawa, Misato; Tamura, Motohide; Itoh, Yoichi; Oasa, Yumiko; Kudo, Tomoyuki; Hayashi, Saeko S.; Kato, Eri; Ootsubo, Takafumi; Itoh, Yusuke; Shibai, Hiroshi; Hayashi, Masahiko (2010). "Subaru Near-Infrared Imaging of Herbig Ae Stars". Publications of the Astronomical Society of Japan. 62 (2): 347. Bibcode:2010PASJ...62..347F. doi:10.1093/pasj/62.2.347.
  10. ↑ Hubrig, S.; Schöller, M.; Ilyin, I.; Cowley, C. R.; Mikulášek, Z.; Stelzer, B.; Pogodin, M. A.; Yudin, R. V.; Curé, M. (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. arXiv:1111.2186. Bibcode:2011A&A...536A..45H. doi:10.1051/0004-6361/201117407. S2CID 18498467.
  11. ↑ Monnier, John D.; Harries, Tim J.; Aarnio, Alicia; Adams, Fred C.; Andrews, Sean; Calvet, Nuria; Espaillat, Catherine; Hartmann, Lee; Hinkley, Sasha; Kraus, Stefan; McClure, Melissa; Oppenheimer, Rebecca; Perrin, Marshall; Wilner, David (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. arXiv:1702.04780. Bibcode:2017ApJ...838...20M. doi:10.3847/1538-4357/aa6248. S2CID 73586372.
  12. ↑ Kluska, J.; Berger, J.-P.; Malbet, F.; Lazareff, B.; Benisty, M.; Le Bouquin, J.-B.; Absil, O.; Baron, F.; Delboulbé, A.; Duvert, G.; Isella, A.; Jocou, L.; Juhasz, A.; Kraus, S.; Lachaume, R.; Ménard, F.; Millan-Gabet, R.; Monnier, J. D.; Moulin, T.; Perraut, K.; Rochat, S.; Pinte, C.; Soulez, F.; Tallon, M.; Thi, W.-F.; Thiébaut, E.; Traub, W.; Zins, G. (2020). "A family portrait of disk inner rims around Herbig Ae/Be stars". Astronomy & Astrophysics. 636: A116. arXiv:2004.01594. Bibcode:2020A&A...636A.116K. doi:10.1051/0004-6361/201833774. S2CID 214795168.
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