HD 150193

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

Short description: T Tauri star in the constellation Ophiuchus

HD 150193  Observation data
Equinox J2000.0]] (ICRS)

Constellation | Ophiuchus
Right ascension |  16h 40m 17.9243s
Declination | −23° 53′ 45.1927″
Apparent magnitude (V) | 8.79[1]
Characteristics
Spectral type | A1Ve[2]
Spectral type | F9Ve[3]
Astrometry
HD 150193A
Proper motion (μ)|  RA: -4.93±0.02[4] mas/yr
Dec.: -19.046±0.017[4] mas/yr
Parallax (π)| 6.6313 ± 0.0211[4] mas
Distance| 492 ± 2 ly
(150.8 ± 0.5 pc)
HD 150193B
Proper motion (μ)|  RA: -9.2±0.2 mas/yr
Dec.: -18.3±0.2 mas/yr
Parallax (π)| 6.7543 ± 0.1032[5] mas
Distance| 483 ± 7 ly
(148 ± 2 pc)
Position (relative to HD 150193A)[6]
Component| HD 150193B
Angular distance| 1.10±0.03″
Position angle| 225.0±0.8°
Observed separation
(projected)| 166 AU
Details[2]
HD 150193A
Mass| 2.2 M☉
Radius| 2.0 R☉
Luminosity| 91.8±1.1[3] L☉
Temperature| 9000 K
Rotation| 1.317 d[7]
Rotational velocity (v sin i)| 100 km/s
Age| 7+2−1[3] Myr
HD 150193B
Mass| 1.2±0.2[3] M☉
Luminosity| 1.35[3] L☉
Age| >10[3] Myr
Other designations

CD-23 12887, HD 150193, HIP 81624, SAO 184536, GSC 06796-01287, 2MASS J16401792-2353452, Gaia DR2 6047858485904034944, V2307 Oph[1]

HD 150193A: Gaia EDR3 6047858485904034944, TYC 6796-1287-1
HD 150193B: Gaia EDR3 6047858490197870720, TYC 6796-1287-2
Database references
SIMBAD| data

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.[2] It does host a very small debris disk, likely due to disk truncation by the nearby stellar companion.[8] The disk is inclined 38±9° to the plane of sky. It appears to be highly evolved and asymmetric,[9] with indications of flattening and grains growth.[6]

The companion HD 150193B, is a T Tauri young star[10] with a projected separation of 166 AU.[6]

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

## References

1. ↑ 1.0 1.1 "HD 150193". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+150193.
2. ↑ 2.0 2.1 2.2 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
3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 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
4. ↑ 4.0 4.1 Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
5. ↑ Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
6. ↑ 6.0 6.1 6.2 Subaru near-infrared imaging of Herbig Ae stars
7. ↑ Characterising the magnetic fields of the Herbig Ae/Be stars HD 97048, HD 150193, HD 176386, and MWC 480
8. ↑ 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: 20, doi:10.3847/1538-4357/aa6248
9. ↑ 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
10. ↑ 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

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/HD 150193. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:HD_150193&oldid=1060599"
*[RA:]: Right Ascension
*[Dec.:]: Declination