NEW EXTINCTION AND MASS ESTIMATES OF THE LOW-MASS COMPANION 1RXS 1609 B WITH THE MAGELLAN AO SYSTEM: EVIDENCE OF AN INCLINED DUST DISK

Ya Lin Wu; Laird M. Close; Jared R. Males; Travis S. Barman; Katie M. Morzinski; Katherine B. Follette; Vanessa P. Bailey; Timothy J. Rodigas; Philip Hinz; Alfio Puglisi; Marco Xompero; Runa Briguglio

doi:10.1088/2041-8205/807/1/L13

NEW EXTINCTION AND MASS ESTIMATES OF THE LOW-MASS COMPANION 1RXS 1609 B WITH THE MAGELLAN AO SYSTEM: EVIDENCE OF AN INCLINED DUST DISK

Ya Lin Wu
, Laird M. Close
, Jared R. Males
, Travis S. Barman
, Katie M. Morzinski
, Katherine B. Follette
, Vanessa P. Bailey
, Timothy J. Rodigas
, Philip Hinz
, Alfio Puglisi
, Marco Xompero
, Runa Briguglio

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

23 引文斯高帕斯（Scopus）

摘要

We used the Magellan adaptive optics system to image the 11 Myr substellar companion 1RXS 1609 B at the bluest wavelengths to date (z′ and Y_s). Comparison with synthetic spectra yields a higher temperature than previous studies of T_eff = 2000 ± 100 K and significant dust extinction of A_V = 4.5^+0.5_-0.7 mag. Mass estimates based on the DUSTY tracks gives 0.012-0.015 M_⊙, making the companion likely a low-mass brown dwarf surrounded by a dusty disk. Our study suggests that 1RXS 1609 B is one of the ∼25% of Upper Scorpius low-mass members harboring disks, and it may have formed like a star and not a planet out at ∼320 AU.

原文	英語
文章編號	L13
期刊	Astrophysical Journal Letters
卷	807
發行號	1
DOIs	https://doi.org/10.1088/2041-8205/807/1/L13
出版狀態	已發佈 - 2015 7月 1
對外發佈	是

ASJC Scopus subject areas

天文和天體物理學
空間與行星科學

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10.1088/2041-8205/807/1/L13

其它文件與鏈接

Link to publication in Scopus

引用此

Wu, Y. L., Close, L. M., Males, J. R., Barman, T. S., Morzinski, K. M., Follette, K. B., Bailey, V. P., Rodigas, T. J., Hinz, P., Puglisi, A., Xompero, M., & Briguglio, R. (2015). NEW EXTINCTION AND MASS ESTIMATES OF THE LOW-MASS COMPANION 1RXS 1609 B WITH THE MAGELLAN AO SYSTEM: EVIDENCE OF AN INCLINED DUST DISK. Astrophysical Journal Letters, 807(1), 文章 L13. https://doi.org/10.1088/2041-8205/807/1/L13

Wu, YL, Close, LM, Males, JR, Barman, TS, Morzinski, KM, Follette, KB, Bailey, VP, Rodigas, TJ, Hinz, P, Puglisi, A, Xompero, M & Briguglio, R 2015, 'NEW EXTINCTION AND MASS ESTIMATES OF THE LOW-MASS COMPANION 1RXS 1609 B WITH THE MAGELLAN AO SYSTEM: EVIDENCE OF AN INCLINED DUST DISK', Astrophysical Journal Letters, 卷 807, 編號 1, L13. https://doi.org/10.1088/2041-8205/807/1/L13

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abstract = "We used the Magellan adaptive optics system to image the 11 Myr substellar companion 1RXS 1609 B at the bluest wavelengths to date (z′ and Ys). Comparison with synthetic spectra yields a higher temperature than previous studies of Teff = 2000 ± 100 K and significant dust extinction of AV = 4.5+0.5-0.7 mag. Mass estimates based on the DUSTY tracks gives 0.012-0.015 M⊙, making the companion likely a low-mass brown dwarf surrounded by a dusty disk. Our study suggests that 1RXS 1609 B is one of the ∼25\% of Upper Scorpius low-mass members harboring disks, and it may have formed like a star and not a planet out at ∼320 AU.",

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T2 - EVIDENCE OF AN INCLINED DUST DISK

AU - Wu, Ya Lin

AU - Close, Laird M.

AU - Males, Jared R.

AU - Barman, Travis S.

AU - Morzinski, Katie M.

AU - Follette, Katherine B.

AU - Bailey, Vanessa P.

AU - Rodigas, Timothy J.

AU - Hinz, Philip

AU - Puglisi, Alfio

AU - Xompero, Marco

AU - Briguglio, Runa

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AB - We used the Magellan adaptive optics system to image the 11 Myr substellar companion 1RXS 1609 B at the bluest wavelengths to date (z′ and Ys). Comparison with synthetic spectra yields a higher temperature than previous studies of Teff = 2000 ± 100 K and significant dust extinction of AV = 4.5+0.5-0.7 mag. Mass estimates based on the DUSTY tracks gives 0.012-0.015 M⊙, making the companion likely a low-mass brown dwarf surrounded by a dusty disk. Our study suggests that 1RXS 1609 B is one of the ∼25% of Upper Scorpius low-mass members harboring disks, and it may have formed like a star and not a planet out at ∼320 AU.

KW - brown dwarfs

KW - instrumentation: adaptive optics

KW - planetary systems

KW - planets and satellites: individual

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NEW EXTINCTION AND MASS ESTIMATES OF THE LOW-MASS COMPANION 1RXS 1609 B WITH THE MAGELLAN AO SYSTEM: EVIDENCE OF AN INCLINED DUST DISK

摘要

ASJC Scopus subject areas

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