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; D. 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. Ménard; M. Silverstone; P. Smith; M. Troutman; D. Wilner; B. Woodgate

doi:10.1063/1.3099126

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, D. 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: Contribution to journal › Conference article › peer-review

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 language	English (US)
Pages (from-to)	385-388
Number of pages	4
Journal	AIP Conference Proceedings
Volume	1094
DOIs	https://doi.org/10.1063/1.3099126
State	Published - 2009
Event	15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - St. Andrews, United Kingdom Duration: Jul 21 2008 → Jul 25 2008

Keywords

Accretion
Individual
Protoplanetary disks
Rotation
SAO 206462
Transitional disks

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.3099126

Cite this

Grady, C. A., Schneider, G., Sitko, M. L., Williger, G. M., Hamaguchi, K., Brittain, S. D., Ablordeppey, K., Apai, D., Beerman, L., Carpenter, W. J., Collins, K. A., Fukagawa, M., Hammel, H. B., Henning, T., Hines, D., Kimes, R., Lynch, D. K., Pearson, R., Russell, R. W., ... Woodgate, B. (2009). The disk and environment of a young altair analog: SAO 206462. AIP Conference Proceedings, 1094, 385-388. https://doi.org/10.1063/1.3099126

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', AIP Conference Proceedings, vol. 1094, pp. 385-388. https://doi.org/10.1063/1.3099126

@article{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 D. 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",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics Publising LLC",

note = "15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun ; Conference date: 21-07-2008 Through 25-07-2008",

}

TY - JOUR

T1 - The disk and environment of a young altair analog

T2 - 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun

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, D.

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 article

AN - SCOPUS:64849117863

SN - 0094-243X

VL - 1094

SP - 385

EP - 388

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

Y2 - 21 July 2008 through 25 July 2008

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this