Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B

John E. Krist; Karl R. Stapelfeldt; Christopher J. Burrows; Gilda E. Ballester; John T. Clarke; David Crisp; Robin W. Evans; John S. Gallagher; Richard E. Griffiths; J. Jeff Hester; John G. Hoessel; Jon A. Holtzman; Jeremy R. Mould; Paul Scowen; John T. Trauger; Alan M. Watson; James A. Westphal

doi:10.1086/305861

Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B

John E. Krist, Karl R. Stapelfeldt, Christopher J. Burrows, Gilda E. Ballester, John T. Clarke, David Crisp, Robin W. Evans, John S. Gallagher, Richard E. Griffiths, J. Jeff Hester, John G. Hoessel, Jon A. Holtzman, Jeremy R. Mould, Paul Scowen, John T. Trauger, Alan M. Watson, James A. Westphal

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37 Scopus citations

Abstract

We have observed the field of FS Tauri (Haro 6-5) with the Wide Field Planetary Camera 2 on the Hubble Space Telescope. Centered on Haro 6-5B and adjacent to the nebulous binary system of FS Tauri A there is an extended complex of reflection nebulosity that includes a diffuse, hourglass-shaped structure. H6-5B, the source of a bipolar jet, is not directly visible but appears to illuminate a compact, bipolar nebula which we assume to be a protostellar disk similar to HH 30. The bipolar jet appears twisted, which explains the unusually broad width measured in ground-based images. We present the first resolved photometry of the FS Tau A components at visual wavelengths. The fluxes of the fainter, eastern component are well matched by a 3360 K blackbody with an extinction of A_v = 8. For the western star, however, any reasonable, reddened blackbody energy distribution underestimates the K-band photometry by over 2 mag. This may indicate errors in the infrared photometry or errors in our visible measurements due to bright reflection nebulosity very close to the star. The binary was separated by 0″.239 ± 0″.005 at a position angle of 84° ± 1°.5 on 1996 January 25. There is no nebulosity around FS Tau A at the orientation suggested for a disk based on previous, ground-based polarization measurements.

Original language	English (US)
Pages (from-to)	841-852
Number of pages	12
Journal	Astrophysical Journal
Volume	501
Issue number	2 PART 1
DOIs	https://doi.org/10.1086/305861
State	Published - Jul 10 1998

Keywords

Binaries: visual
Circumstellar matter
ISM: jets and outflows
Stars: individual (FS Tauri, Haro 6-5B)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/305861

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Krist, J. E., Stapelfeldt, K. R., Burrows, C. J., Ballester, G. E., Clarke, J. T., Crisp, D., Evans, R. W., Gallagher, J. S., Griffiths, R. E., Hester, J. J., Hoessel, J. G., Holtzman, J. A., Mould, J. R., Scowen, P., Trauger, J. T., Watson, A. M., & Westphal, J. A. (1998). Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B. Astrophysical Journal, 501(2 PART 1), 841-852. https://doi.org/10.1086/305861

Krist, JE, Stapelfeldt, KR, Burrows, CJ, Ballester, GE, Clarke, JT, Crisp, D, Evans, RW, Gallagher, JS, Griffiths, RE, Hester, JJ, Hoessel, JG, Holtzman, JA, Mould, JR, Scowen, P, Trauger, JT, Watson, AM & Westphal, JA 1998, 'Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B', Astrophysical Journal, vol. 501, no. 2 PART 1, pp. 841-852. https://doi.org/10.1086/305861

@article{3b7772d60c594e61a64010e7f56c920a,

title = "Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B",

abstract = "We have observed the field of FS Tauri (Haro 6-5) with the Wide Field Planetary Camera 2 on the Hubble Space Telescope. Centered on Haro 6-5B and adjacent to the nebulous binary system of FS Tauri A there is an extended complex of reflection nebulosity that includes a diffuse, hourglass-shaped structure. H6-5B, the source of a bipolar jet, is not directly visible but appears to illuminate a compact, bipolar nebula which we assume to be a protostellar disk similar to HH 30. The bipolar jet appears twisted, which explains the unusually broad width measured in ground-based images. We present the first resolved photometry of the FS Tau A components at visual wavelengths. The fluxes of the fainter, eastern component are well matched by a 3360 K blackbody with an extinction of Av = 8. For the western star, however, any reasonable, reddened blackbody energy distribution underestimates the K-band photometry by over 2 mag. This may indicate errors in the infrared photometry or errors in our visible measurements due to bright reflection nebulosity very close to the star. The binary was separated by 0″.239 ± 0″.005 at a position angle of 84° ± 1°.5 on 1996 January 25. There is no nebulosity around FS Tau A at the orientation suggested for a disk based on previous, ground-based polarization measurements.",

keywords = "Binaries: visual, Circumstellar matter, ISM: jets and outflows, Stars: individual (FS Tauri, Haro 6-5B)",

author = "Krist, {John E.} and Stapelfeldt, {Karl R.} and Burrows, {Christopher J.} and Ballester, {Gilda E.} and Clarke, {John T.} and David Crisp and Evans, {Robin W.} and Gallagher, {John S.} and Griffiths, {Richard E.} and Hester, {J. Jeff} and Hoessel, {John G.} and Holtzman, {Jon A.} and Mould, {Jeremy R.} and Paul Scowen and Trauger, {John T.} and Watson, {Alan M.} and Westphal, {James A.}",

year = "1998",

month = jul,

day = "10",

doi = "10.1086/305861",

language = "English (US)",

volume = "501",

pages = "841--852",

journal = "Astrophysical Journal",

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T1 - Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B

AU - Krist, John E.

AU - Stapelfeldt, Karl R.

AU - Burrows, Christopher J.

AU - Ballester, Gilda E.

AU - Clarke, John T.

AU - Crisp, David

AU - Evans, Robin W.

AU - Gallagher, John S.

AU - Griffiths, Richard E.

AU - Hester, J. Jeff

AU - Hoessel, John G.

AU - Holtzman, Jon A.

AU - Mould, Jeremy R.

AU - Scowen, Paul

AU - Trauger, John T.

AU - Watson, Alan M.

AU - Westphal, James A.

PY - 1998/7/10

Y1 - 1998/7/10

N2 - We have observed the field of FS Tauri (Haro 6-5) with the Wide Field Planetary Camera 2 on the Hubble Space Telescope. Centered on Haro 6-5B and adjacent to the nebulous binary system of FS Tauri A there is an extended complex of reflection nebulosity that includes a diffuse, hourglass-shaped structure. H6-5B, the source of a bipolar jet, is not directly visible but appears to illuminate a compact, bipolar nebula which we assume to be a protostellar disk similar to HH 30. The bipolar jet appears twisted, which explains the unusually broad width measured in ground-based images. We present the first resolved photometry of the FS Tau A components at visual wavelengths. The fluxes of the fainter, eastern component are well matched by a 3360 K blackbody with an extinction of Av = 8. For the western star, however, any reasonable, reddened blackbody energy distribution underestimates the K-band photometry by over 2 mag. This may indicate errors in the infrared photometry or errors in our visible measurements due to bright reflection nebulosity very close to the star. The binary was separated by 0″.239 ± 0″.005 at a position angle of 84° ± 1°.5 on 1996 January 25. There is no nebulosity around FS Tau A at the orientation suggested for a disk based on previous, ground-based polarization measurements.

AB - We have observed the field of FS Tauri (Haro 6-5) with the Wide Field Planetary Camera 2 on the Hubble Space Telescope. Centered on Haro 6-5B and adjacent to the nebulous binary system of FS Tauri A there is an extended complex of reflection nebulosity that includes a diffuse, hourglass-shaped structure. H6-5B, the source of a bipolar jet, is not directly visible but appears to illuminate a compact, bipolar nebula which we assume to be a protostellar disk similar to HH 30. The bipolar jet appears twisted, which explains the unusually broad width measured in ground-based images. We present the first resolved photometry of the FS Tau A components at visual wavelengths. The fluxes of the fainter, eastern component are well matched by a 3360 K blackbody with an extinction of Av = 8. For the western star, however, any reasonable, reddened blackbody energy distribution underestimates the K-band photometry by over 2 mag. This may indicate errors in the infrared photometry or errors in our visible measurements due to bright reflection nebulosity very close to the star. The binary was separated by 0″.239 ± 0″.005 at a position angle of 84° ± 1°.5 on 1996 January 25. There is no nebulosity around FS Tau A at the orientation suggested for a disk based on previous, ground-based polarization measurements.

KW - Binaries: visual

KW - Circumstellar matter

KW - ISM: jets and outflows

KW - Stars: individual (FS Tauri, Haro 6-5B)

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DO - 10.1086/305861

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SN - 0004-637X

VL - 501

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EP - 852

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 1

ER -

Hubble space telescope WFPC2 imaging of FS Tauri and Haro 6-5B

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