DISCOVERY of AN INNER DISK COMPONENT AROUND HD 141569 A

Mihoko Konishi, Carol A. Grady, Glenn Schneider, Hiroshi Shibai, Michael W. McElwain, Erika R. Nesvold, Marc J. Kuchner, Joseph Carson, John H. Debes, Andras Gaspar, Thomas K. Henning, Dean C. Hines, Philip M Hinz, Hannah Jang-Condell, Amaya Moro-Martin, Marshall Perrin, Timothy J. Rodigas, Eugene Serabyn, Murray D. Silverstone, Christopher C. Stark & 3 others Motohide Tamura, Alycia J. Weinberger, John P. Wisniewski

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report the discovery of a scattering component around the HD 141569 A circumstellar debris system, interior to the previously known inner ring. The discovered inner disk component, obtained in broadband optical light with Hubble Space Telescope/Space Telescope Imaging Spectrograph coronagraphy, was imaged with an inner working angle of 0.″25, and can be traced from 0.″4 (∼46 AU) to 1.″0 (∼116 AU) after deprojection using i = 55°. The inner disk component is seen to forward scatter in a manner similar to the previously known rings, has a pericenter offset of ∼6 AU, and break points where the slope of the surface brightness changes. It also has a spiral arm trailing in the same sense as other spiral arms and arcs seen at larger stellocentric distances. The inner disk spatially overlaps with the previously reported warm gas disk seen in thermal emission. We detect no point sources within 2″ (∼232 AU), in particular in the gap between the inner disk component and the inner ring. Our upper limit of 9 ± 3 MJ is augmented by a new dynamical limit on single planetary mass bodies in the gap between the inner disk component and the inner ring of 1 MJ, which is broadly consistent with previous estimates.

Original languageEnglish (US)
Article numberL23
JournalAstrophysical Journal Letters
Volume818
Issue number2
DOIs
StatePublished - Feb 20 2016

Fingerprint

body mass
point source
rings
scattering
gas
planetary mass
thermal emission
Hubble Space Telescope
debris
point sources
spectrographs
brightness
arcs
telescopes
slopes
broadband
estimates
gases

Keywords

  • circumstellar matter
  • stars: imaging
  • stars: individual (HD 141569 A)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Konishi, M., Grady, C. A., Schneider, G., Shibai, H., McElwain, M. W., Nesvold, E. R., ... Wisniewski, J. P. (2016). DISCOVERY of AN INNER DISK COMPONENT AROUND HD 141569 A. Astrophysical Journal Letters, 818(2), [L23]. https://doi.org/10.3847/2041-8205/818/2/L23

DISCOVERY of AN INNER DISK COMPONENT AROUND HD 141569 A. / Konishi, Mihoko; Grady, Carol A.; Schneider, Glenn; Shibai, Hiroshi; McElwain, Michael W.; Nesvold, Erika R.; Kuchner, Marc J.; Carson, Joseph; Debes, John H.; Gaspar, Andras; Henning, Thomas K.; Hines, Dean C.; Hinz, Philip M; Jang-Condell, Hannah; Moro-Martin, Amaya; Perrin, Marshall; Rodigas, Timothy J.; Serabyn, Eugene; Silverstone, Murray D.; Stark, Christopher C.; Tamura, Motohide; Weinberger, Alycia J.; Wisniewski, John P.

In: Astrophysical Journal Letters, Vol. 818, No. 2, L23, 20.02.2016.

Research output: Contribution to journalArticle

Konishi, M, Grady, CA, Schneider, G, Shibai, H, McElwain, MW, Nesvold, ER, Kuchner, MJ, Carson, J, Debes, JH, Gaspar, A, Henning, TK, Hines, DC, Hinz, PM, Jang-Condell, H, Moro-Martin, A, Perrin, M, Rodigas, TJ, Serabyn, E, Silverstone, MD, Stark, CC, Tamura, M, Weinberger, AJ & Wisniewski, JP 2016, 'DISCOVERY of AN INNER DISK COMPONENT AROUND HD 141569 A', Astrophysical Journal Letters, vol. 818, no. 2, L23. https://doi.org/10.3847/2041-8205/818/2/L23
Konishi M, Grady CA, Schneider G, Shibai H, McElwain MW, Nesvold ER et al. DISCOVERY of AN INNER DISK COMPONENT AROUND HD 141569 A. Astrophysical Journal Letters. 2016 Feb 20;818(2). L23. https://doi.org/10.3847/2041-8205/818/2/L23
Konishi, Mihoko ; Grady, Carol A. ; Schneider, Glenn ; Shibai, Hiroshi ; McElwain, Michael W. ; Nesvold, Erika R. ; Kuchner, Marc J. ; Carson, Joseph ; Debes, John H. ; Gaspar, Andras ; Henning, Thomas K. ; Hines, Dean C. ; Hinz, Philip M ; Jang-Condell, Hannah ; Moro-Martin, Amaya ; Perrin, Marshall ; Rodigas, Timothy J. ; Serabyn, Eugene ; Silverstone, Murray D. ; Stark, Christopher C. ; Tamura, Motohide ; Weinberger, Alycia J. ; Wisniewski, John P. / DISCOVERY of AN INNER DISK COMPONENT AROUND HD 141569 A. In: Astrophysical Journal Letters. 2016 ; Vol. 818, No. 2.
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