Mid-infrared spectra of dust debris around main-sequence stars

M. Jura; C. H. Chen; E. Furlan; J. Green; B. Sargent; W. J. Forrest; D. M. Watson; D. J. Barry; P. Hall; T. L. Herter; J. R. Houck; G. C. Sloan; K. Uchida; P. D'Alessio; B. R. Brandl; L. D. Keller; F. Kemper; P. Morris; J. Najita; N. Calvet; L. Hartmann; P. C. Myers

doi:10.1086/422975

Mid-infrared spectra of dust debris around main-sequence stars

M. Jura, C. H. Chen, E. Furlan, J. Green, B. Sargent, W. J. Forrest, D. M. Watson, D. J. Barry, P. Hall, T. L. Herter, J. R. Houck, G. C. Sloan, K. Uchida, P. D'Alessio, B. R. Brandl, L. D. Keller, F. Kemper, P. Morris, J. Najita, N. CalvetL. Hartmann, P. C. Myers

Research output: Contribution to journal › Article › peer-review

Abstract

We report spectra obtained with the Spitzer Space Telescope in the λ = 14-35 μm range of 19 nearby mainsequence stars with infrared excesses. The six stars with strong dust emission show no recognizable spectral features, suggesting that the bulk of the emitting particles have diameters larger than 10 μm. If the observed dust results from collisional grinding of larger solids, we infer minimum masses of the parent body population between 0.004 and 0.06 M⊕. We estimate grain production rates of ∼1010 g s-1 around λ Boo and HR 1570; selective accretion of this matter may help explain their peculiar surface abundances. There appear to be inner truncations in the dust clouds at 48, 11, 52, and 54 AU around HR 333, HR 506, HR 1082, and HR 3927, respectively.

Original language	English
Pages (from-to)	453-457
Number of pages	4
Journal	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume	154
Issue number	1
DOIs	https://doi.org/10.1086/422975
Publication status	Published - Sept 2004

Keywords

Circumstellar matter
Infrared: stars

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10.1086/422975

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Jura, M., Chen, C. H., Furlan, E., Green, J., Sargent, B., Forrest, W. J., Watson, D. M., Barry, D. J., Hall, P., Herter, T. L., Houck, J. R., Sloan, G. C., Uchida, K., D'Alessio, P., Brandl, B. R., Keller, L. D., Kemper, F., Morris, P., Najita, J., ... Myers, P. C. (2004). Mid-infrared spectra of dust debris around main-sequence stars. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 154(1), 453-457. https://doi.org/10.1086/422975

@article{b3e6fe7608f54ee4aa5860ce59b1b4b6,

title = "Mid-infrared spectra of dust debris around main-sequence stars",

abstract = "We report spectra obtained with the Spitzer Space Telescope in the λ = 14-35 μm range of 19 nearby mainsequence stars with infrared excesses. The six stars with strong dust emission show no recognizable spectral features, suggesting that the bulk of the emitting particles have diameters larger than 10 μm. If the observed dust results from collisional grinding of larger solids, we infer minimum masses of the parent body population between 0.004 and 0.06 M⊕. We estimate grain production rates of ∼1010 g s-1 around λ Boo and HR 1570; selective accretion of this matter may help explain their peculiar surface abundances. There appear to be inner truncations in the dust clouds at 48, 11, 52, and 54 AU around HR 333, HR 506, HR 1082, and HR 3927, respectively.",

keywords = "Circumstellar matter, Infrared: stars",

author = "M. Jura and Chen, {C. H.} and E. Furlan and J. Green and B. Sargent and Forrest, {W. J.} and Watson, {D. M.} and Barry, {D. J.} and P. Hall and Herter, {T. L.} and Houck, {J. R.} and Sloan, {G. C.} and K. Uchida and P. D'Alessio and Brandl, {B. R.} and Keller, {L. D.} and F. Kemper and P. Morris and J. Najita and N. Calvet and L. Hartmann and Myers, {P. C.}",

year = "2004",

month = sep,

doi = "10.1086/422975",

language = "English",

volume = "154",

pages = "453--457",

journal = "ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES",

issn = "0067-0049",

publisher = "American Astronomical Society",

number = "1",

}

Jura, M, Chen, CH, Furlan, E, Green, J, Sargent, B, Forrest, WJ, Watson, DM, Barry, DJ, Hall, P, Herter, TL, Houck, JR, Sloan, GC, Uchida, K, D'Alessio, P, Brandl, BR, Keller, LD, Kemper, F, Morris, P, Najita, J, Calvet, N, Hartmann, L & Myers, PC 2004, 'Mid-infrared spectra of dust debris around main-sequence stars', ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, vol. 154, no. 1, pp. 453-457. https://doi.org/10.1086/422975

TY - JOUR

T1 - Mid-infrared spectra of dust debris around main-sequence stars

AU - Jura, M.

AU - Chen, C. H.

AU - Furlan, E.

AU - Green, J.

AU - Sargent, B.

AU - Forrest, W. J.

AU - Watson, D. M.

AU - Barry, D. J.

AU - Hall, P.

AU - Herter, T. L.

AU - Houck, J. R.

AU - Sloan, G. C.

AU - Uchida, K.

AU - D'Alessio, P.

AU - Brandl, B. R.

AU - Keller, L. D.

AU - Kemper, F.

AU - Morris, P.

AU - Najita, J.

AU - Calvet, N.

AU - Hartmann, L.

AU - Myers, P. C.

PY - 2004/9

Y1 - 2004/9

N2 - We report spectra obtained with the Spitzer Space Telescope in the λ = 14-35 μm range of 19 nearby mainsequence stars with infrared excesses. The six stars with strong dust emission show no recognizable spectral features, suggesting that the bulk of the emitting particles have diameters larger than 10 μm. If the observed dust results from collisional grinding of larger solids, we infer minimum masses of the parent body population between 0.004 and 0.06 M⊕. We estimate grain production rates of ∼1010 g s-1 around λ Boo and HR 1570; selective accretion of this matter may help explain their peculiar surface abundances. There appear to be inner truncations in the dust clouds at 48, 11, 52, and 54 AU around HR 333, HR 506, HR 1082, and HR 3927, respectively.

AB - We report spectra obtained with the Spitzer Space Telescope in the λ = 14-35 μm range of 19 nearby mainsequence stars with infrared excesses. The six stars with strong dust emission show no recognizable spectral features, suggesting that the bulk of the emitting particles have diameters larger than 10 μm. If the observed dust results from collisional grinding of larger solids, we infer minimum masses of the parent body population between 0.004 and 0.06 M⊕. We estimate grain production rates of ∼1010 g s-1 around λ Boo and HR 1570; selective accretion of this matter may help explain their peculiar surface abundances. There appear to be inner truncations in the dust clouds at 48, 11, 52, and 54 AU around HR 333, HR 506, HR 1082, and HR 3927, respectively.

KW - Circumstellar matter

KW - Infrared: stars

U2 - 10.1086/422975

DO - 10.1086/422975

M3 - Article

SN - 0067-0049

VL - 154

SP - 453

EP - 457

JO - ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES

JF - ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES

IS - 1

ER -

Mid-infrared spectra of dust debris around main-sequence stars

Abstract

Keywords

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