The disk and environment of a young altair analog: SAO 206462

C. A. Grady, G. Schneider, M. L. Sitko, G. M. Williger, K. Hamaguchi, S. D. Brittain, K. Ablordeppey, Daniel Apai, L. Beerman, W. J. Carpenter, K. A. Collins, M. Fukagawa, H. B. Hammel, Th Henning, D. Hines, R. Kimes, D. K. Lynch, R. Pearson, R. W. Russell, F. MénardM. Silverstone, P. Smith, M. Troutman, D. Wilner, B. Woodgate

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Proto-planetary and transitional disks which are detected in scattered light provide a critical test of the interpretation of circumstellar disks based on the IR spectral energy distribution (SED) alone. The disk inclination to the line-of-sight, outter radius, and surface brightness (SB) maps or radial SB distributions provided by spatially resolved imaging remove most of the degeneracies inherent in fitting IR SEDs without such observational constraints. We have imaged the disk of SAO 206462 (HD 135344B) in 1.1 and 1.6μm scattered light with HST/NICMOS and can trace the essentially face-on disk out to 1.05". The cavity detected in sub-mm observations lies entirely under the NICMOS coronagraphic spot, a result consistent with the SED fitting if the star is at d=140pc. The SED had previously been classified as a Meeus Group I SED and interpreted as arising in a flared disk. Neither the 1.1 nor the 1.6μm radial surface brightness profiles are consistent with a flared disk. A FUSE FUV spectrum demonstrates the presence of excess light in this system, confirming the accretion rate estimated from Brγ. Collectively, these data strengthen the interpretation of this system as a transitional disk.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages385-388
Number of pages4
Volume1094
DOIs
StatePublished - 2009
Event15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - St. Andrews, United Kingdom
Duration: Jul 21 2008Jul 25 2008

Other

Other15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun
CountryUnited Kingdom
CitySt. Andrews
Period7/21/087/25/08

Fingerprint

analogs
spectral energy distribution
brightness
Far UV Spectroscopic Explorer
brightness distribution
line of sight
inclination
stars
cavities
radii
profiles

Keywords

  • Accretion
  • Individual
  • Protoplanetary disks
  • Rotation
  • SAO 206462
  • Transitional disks

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Grady, C. A., Schneider, G., Sitko, M. L., Williger, G. M., Hamaguchi, K., Brittain, S. D., ... Woodgate, B. (2009). The disk and environment of a young altair analog: SAO 206462. In AIP Conference Proceedings (Vol. 1094, pp. 385-388) https://doi.org/10.1063/1.3099126

The disk and environment of a young altair analog : SAO 206462. / Grady, C. A.; Schneider, G.; Sitko, M. L.; Williger, G. M.; Hamaguchi, K.; Brittain, S. D.; Ablordeppey, K.; Apai, Daniel; Beerman, L.; Carpenter, W. J.; Collins, K. A.; Fukagawa, M.; Hammel, H. B.; Henning, Th; Hines, D.; Kimes, R.; Lynch, D. K.; Pearson, R.; Russell, R. W.; Ménard, F.; Silverstone, M.; Smith, P.; Troutman, M.; Wilner, D.; Woodgate, B.

AIP Conference Proceedings. Vol. 1094 2009. p. 385-388.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Grady, CA, Schneider, G, Sitko, ML, Williger, GM, Hamaguchi, K, Brittain, SD, Ablordeppey, K, Apai, D, Beerman, L, Carpenter, WJ, Collins, KA, Fukagawa, M, Hammel, HB, Henning, T, Hines, D, Kimes, R, Lynch, DK, Pearson, R, Russell, RW, Ménard, F, Silverstone, M, Smith, P, Troutman, M, Wilner, D & Woodgate, B 2009, The disk and environment of a young altair analog: SAO 206462. in AIP Conference Proceedings. vol. 1094, pp. 385-388, 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, St. Andrews, United Kingdom, 7/21/08. https://doi.org/10.1063/1.3099126
Grady CA, Schneider G, Sitko ML, Williger GM, Hamaguchi K, Brittain SD et al. The disk and environment of a young altair analog: SAO 206462. In AIP Conference Proceedings. Vol. 1094. 2009. p. 385-388 https://doi.org/10.1063/1.3099126
Grady, C. A. ; Schneider, G. ; Sitko, M. L. ; Williger, G. M. ; Hamaguchi, K. ; Brittain, S. D. ; Ablordeppey, K. ; Apai, Daniel ; Beerman, L. ; Carpenter, W. J. ; Collins, K. A. ; Fukagawa, M. ; Hammel, H. B. ; Henning, Th ; Hines, D. ; Kimes, R. ; Lynch, D. K. ; Pearson, R. ; Russell, R. W. ; Ménard, F. ; Silverstone, M. ; Smith, P. ; Troutman, M. ; Wilner, D. ; Woodgate, B. / The disk and environment of a young altair analog : SAO 206462. AIP Conference Proceedings. Vol. 1094 2009. pp. 385-388
@inproceedings{a06304df4d2d4830a8e27a5bfe82d1a3,
title = "The disk and environment of a young altair analog: SAO 206462",
abstract = "Proto-planetary and transitional disks which are detected in scattered light provide a critical test of the interpretation of circumstellar disks based on the IR spectral energy distribution (SED) alone. The disk inclination to the line-of-sight, outter radius, and surface brightness (SB) maps or radial SB distributions provided by spatially resolved imaging remove most of the degeneracies inherent in fitting IR SEDs without such observational constraints. We have imaged the disk of SAO 206462 (HD 135344B) in 1.1 and 1.6μm scattered light with HST/NICMOS and can trace the essentially face-on disk out to 1.05{"}. The cavity detected in sub-mm observations lies entirely under the NICMOS coronagraphic spot, a result consistent with the SED fitting if the star is at d=140pc. The SED had previously been classified as a Meeus Group I SED and interpreted as arising in a flared disk. Neither the 1.1 nor the 1.6μm radial surface brightness profiles are consistent with a flared disk. A FUSE FUV spectrum demonstrates the presence of excess light in this system, confirming the accretion rate estimated from Brγ. Collectively, these data strengthen the interpretation of this system as a transitional disk.",
keywords = "Accretion, Individual, Protoplanetary disks, Rotation, SAO 206462, Transitional disks",
author = "Grady, {C. A.} and G. Schneider and Sitko, {M. L.} and Williger, {G. M.} and K. Hamaguchi and Brittain, {S. D.} and K. Ablordeppey and Daniel Apai and L. Beerman and Carpenter, {W. J.} and Collins, {K. A.} and M. Fukagawa and Hammel, {H. B.} and Th Henning and D. Hines and R. Kimes and Lynch, {D. K.} and R. Pearson and Russell, {R. W.} and F. M{\'e}nard and M. Silverstone and P. Smith and M. Troutman and D. Wilner and B. Woodgate",
year = "2009",
doi = "10.1063/1.3099126",
language = "English (US)",
volume = "1094",
pages = "385--388",
booktitle = "AIP Conference Proceedings",

}

TY - GEN

T1 - The disk and environment of a young altair analog

T2 - SAO 206462

AU - Grady, C. A.

AU - Schneider, G.

AU - Sitko, M. L.

AU - Williger, G. M.

AU - Hamaguchi, K.

AU - Brittain, S. D.

AU - Ablordeppey, K.

AU - Apai, Daniel

AU - Beerman, L.

AU - Carpenter, W. J.

AU - Collins, K. A.

AU - Fukagawa, M.

AU - Hammel, H. B.

AU - Henning, Th

AU - Hines, D.

AU - Kimes, R.

AU - Lynch, D. K.

AU - Pearson, R.

AU - Russell, R. W.

AU - Ménard, F.

AU - Silverstone, M.

AU - Smith, P.

AU - Troutman, M.

AU - Wilner, D.

AU - Woodgate, B.

PY - 2009

Y1 - 2009

N2 - Proto-planetary and transitional disks which are detected in scattered light provide a critical test of the interpretation of circumstellar disks based on the IR spectral energy distribution (SED) alone. The disk inclination to the line-of-sight, outter radius, and surface brightness (SB) maps or radial SB distributions provided by spatially resolved imaging remove most of the degeneracies inherent in fitting IR SEDs without such observational constraints. We have imaged the disk of SAO 206462 (HD 135344B) in 1.1 and 1.6μm scattered light with HST/NICMOS and can trace the essentially face-on disk out to 1.05". The cavity detected in sub-mm observations lies entirely under the NICMOS coronagraphic spot, a result consistent with the SED fitting if the star is at d=140pc. The SED had previously been classified as a Meeus Group I SED and interpreted as arising in a flared disk. Neither the 1.1 nor the 1.6μm radial surface brightness profiles are consistent with a flared disk. A FUSE FUV spectrum demonstrates the presence of excess light in this system, confirming the accretion rate estimated from Brγ. Collectively, these data strengthen the interpretation of this system as a transitional disk.

AB - Proto-planetary and transitional disks which are detected in scattered light provide a critical test of the interpretation of circumstellar disks based on the IR spectral energy distribution (SED) alone. The disk inclination to the line-of-sight, outter radius, and surface brightness (SB) maps or radial SB distributions provided by spatially resolved imaging remove most of the degeneracies inherent in fitting IR SEDs without such observational constraints. We have imaged the disk of SAO 206462 (HD 135344B) in 1.1 and 1.6μm scattered light with HST/NICMOS and can trace the essentially face-on disk out to 1.05". The cavity detected in sub-mm observations lies entirely under the NICMOS coronagraphic spot, a result consistent with the SED fitting if the star is at d=140pc. The SED had previously been classified as a Meeus Group I SED and interpreted as arising in a flared disk. Neither the 1.1 nor the 1.6μm radial surface brightness profiles are consistent with a flared disk. A FUSE FUV spectrum demonstrates the presence of excess light in this system, confirming the accretion rate estimated from Brγ. Collectively, these data strengthen the interpretation of this system as a transitional disk.

KW - Accretion

KW - Individual

KW - Protoplanetary disks

KW - Rotation

KW - SAO 206462

KW - Transitional disks

UR - http://www.scopus.com/inward/record.url?scp=64849117863&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=64849117863&partnerID=8YFLogxK

U2 - 10.1063/1.3099126

DO - 10.1063/1.3099126

M3 - Conference contribution

AN - SCOPUS:64849117863

VL - 1094

SP - 385

EP - 388

BT - AIP Conference Proceedings

ER -