Gas and dust associated with the strange, isolated star BP piscium

B. Zuckerman, C. Melis, Inseok Song, David S. Meier, Marshall D. Perrin, Bruce Macintosh, Christian Marois, Alycia J. Weinberger, Joseph H. Rhee, James R. Graham, Joel H. Kastner, Patrick Palmer, T. Forveille, E. E. Becklin, D. J. Wilner, Travis S Barman, G. W. Marcy, M. S. Bessell

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We have carried out a multiwavelength observational campaign demonstrating some of the remarkable properties of the infrared-bright variable star BP Psc. Surrounded by a compact dusty, gaseous disk, this little-studied late G (or early K) type star emits about 75% of its detected energy flux at infrared wavelengths. Evidence for accretion of gas in conjunction with narrow bipolar jets and Herbig-Haro objects is apparently consistent with classification of BP Psc as a pre-main-sequence star, as postulated in most previous studies. If young, then BP Psc would be one of the nearest and oldest known classical T Tauri stars. However, such an evolutionary classification encounters various problems that are absent or much less severe if BP Psc is instead a luminosity class III post-main-sequence star. In this case, it would be the first known example of a first-ascent giant surrounded by a massive molecular disk with accompanying rapid gas accretion and prominent jets and HH objects. In this model, the genesis of the massive dusty gaseous disk could be a consequence of the envelopment of a low-mass companion star. Properties in the disk may be conducive to the current formation of planets, a gigayear or more after the formation of BP Psc itself.

Original languageEnglish (US)
Pages (from-to)1085-1103
Number of pages19
JournalAstrophysical Journal
Volume683
Issue number2
DOIs
StatePublished - Aug 20 2008
Externally publishedYes

Fingerprint

dust
accretion
stars
energy flux
gases
gas
planet
infrared stars
Herbig-Haro objects
wavelength
companion stars
pre-main sequence stars
T Tauri stars
variable stars
ascent
main sequence stars
encounters
planets
luminosity
wavelengths

Keywords

  • Planetary systems: protoplanetary disks
  • Stars: general

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Zuckerman, B., Melis, C., Song, I., Meier, D. S., Perrin, M. D., Macintosh, B., ... Bessell, M. S. (2008). Gas and dust associated with the strange, isolated star BP piscium. Astrophysical Journal, 683(2), 1085-1103. https://doi.org/10.1086/587448

Gas and dust associated with the strange, isolated star BP piscium. / Zuckerman, B.; Melis, C.; Song, Inseok; Meier, David S.; Perrin, Marshall D.; Macintosh, Bruce; Marois, Christian; Weinberger, Alycia J.; Rhee, Joseph H.; Graham, James R.; Kastner, Joel H.; Palmer, Patrick; Forveille, T.; Becklin, E. E.; Wilner, D. J.; Barman, Travis S; Marcy, G. W.; Bessell, M. S.

In: Astrophysical Journal, Vol. 683, No. 2, 20.08.2008, p. 1085-1103.

Research output: Contribution to journalArticle

Zuckerman, B, Melis, C, Song, I, Meier, DS, Perrin, MD, Macintosh, B, Marois, C, Weinberger, AJ, Rhee, JH, Graham, JR, Kastner, JH, Palmer, P, Forveille, T, Becklin, EE, Wilner, DJ, Barman, TS, Marcy, GW & Bessell, MS 2008, 'Gas and dust associated with the strange, isolated star BP piscium', Astrophysical Journal, vol. 683, no. 2, pp. 1085-1103. https://doi.org/10.1086/587448
Zuckerman B, Melis C, Song I, Meier DS, Perrin MD, Macintosh B et al. Gas and dust associated with the strange, isolated star BP piscium. Astrophysical Journal. 2008 Aug 20;683(2):1085-1103. https://doi.org/10.1086/587448
Zuckerman, B. ; Melis, C. ; Song, Inseok ; Meier, David S. ; Perrin, Marshall D. ; Macintosh, Bruce ; Marois, Christian ; Weinberger, Alycia J. ; Rhee, Joseph H. ; Graham, James R. ; Kastner, Joel H. ; Palmer, Patrick ; Forveille, T. ; Becklin, E. E. ; Wilner, D. J. ; Barman, Travis S ; Marcy, G. W. ; Bessell, M. S. / Gas and dust associated with the strange, isolated star BP piscium. In: Astrophysical Journal. 2008 ; Vol. 683, No. 2. pp. 1085-1103.
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