SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D)
We examine the light and color evolution of the T Tauri binary KH 15D through photometry obtained at wavelengths between 0.55 and 8.0 μm. The data were collected with A Novel Dual Imaging CAMera (ANDICAM) on the 1.3 m SMARTS telescope at Cerro-Tololo Inter-American Observatory and with InfraRed Arra...
| Main Authors: | , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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IOP Publishing
2016
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| Online Access: | http://hdl.handle.net/1721.1/102636 https://orcid.org/0000-0002-4265-047X |
| _version_ | 1826206474434510848 |
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| author | Arulanantham, Nicole A. Herbst, William Cody, Ann Marie Stauffer, John R. Rebull, Luisa M. Agol, Eric Windemuth, Diana Marengo, Massimo Hamilton, Catrina M. Mundt, Reinhard Johns-Krull, Christopher M. Gutermuth, Robert A. Winn, Joshua Nathan |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Arulanantham, Nicole A. Herbst, William Cody, Ann Marie Stauffer, John R. Rebull, Luisa M. Agol, Eric Windemuth, Diana Marengo, Massimo Hamilton, Catrina M. Mundt, Reinhard Johns-Krull, Christopher M. Gutermuth, Robert A. Winn, Joshua Nathan |
| author_sort | Arulanantham, Nicole A. |
| collection | MIT |
| description | We examine the light and color evolution of the T Tauri binary KH 15D through photometry obtained at wavelengths between 0.55 and 8.0 μm. The data were collected with A Novel Dual Imaging CAMera (ANDICAM) on the 1.3 m SMARTS telescope at Cerro-Tololo Inter-American Observatory and with InfraRed Array Camera on the Spitzer Space Telescope. We show that the system's circumbinary ring, which acts as a screen that covers and uncovers different portions of the binary orbit as the ring precesses, has reached an orientation where the brighter component (star B) fully or nearly fully emerges during each orbital cycle. The fainter component (star A) remains fully occulted by the screen at all phases. The leading and trailing edges of the screen move across the sky at the same rate of ~15 m s[superscript −1], consistent with expectation for a ring with a radius and width of ~4 au and a precession period of ~6500 years. Light and color variations continue to indicate that the screen is sharp edged and opaque at VRIJH wavelengths. However, we find an increasing transparency of the ring edge at 2.2, 3.6, and 4.5 μm. Reddening seen at the beginning of the eclipse that occurred during the CSI 2264 campaign particularly suggests selective extinction by a population of large dust grains. Meanwhile, the gradual bluing observed while star B is setting is indicative of forward scattering effects at the edge of the ring. The spectral energy distribution of the system at its bright phase shows no evidence of infrared excess emission that can be attributed to radiation from the ring or other dust component out to 8 μm. |
| first_indexed | 2024-09-23T13:32:30Z |
| format | Article |
| id | mit-1721.1/102636 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:32:30Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1026362022-09-28T14:40:31Z SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) Arulanantham, Nicole A. Herbst, William Cody, Ann Marie Stauffer, John R. Rebull, Luisa M. Agol, Eric Windemuth, Diana Marengo, Massimo Hamilton, Catrina M. Mundt, Reinhard Johns-Krull, Christopher M. Gutermuth, Robert A. Winn, Joshua Nathan Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Winn, Joshua Nathan We examine the light and color evolution of the T Tauri binary KH 15D through photometry obtained at wavelengths between 0.55 and 8.0 μm. The data were collected with A Novel Dual Imaging CAMera (ANDICAM) on the 1.3 m SMARTS telescope at Cerro-Tololo Inter-American Observatory and with InfraRed Array Camera on the Spitzer Space Telescope. We show that the system's circumbinary ring, which acts as a screen that covers and uncovers different portions of the binary orbit as the ring precesses, has reached an orientation where the brighter component (star B) fully or nearly fully emerges during each orbital cycle. The fainter component (star A) remains fully occulted by the screen at all phases. The leading and trailing edges of the screen move across the sky at the same rate of ~15 m s[superscript −1], consistent with expectation for a ring with a radius and width of ~4 au and a precession period of ~6500 years. Light and color variations continue to indicate that the screen is sharp edged and opaque at VRIJH wavelengths. However, we find an increasing transparency of the ring edge at 2.2, 3.6, and 4.5 μm. Reddening seen at the beginning of the eclipse that occurred during the CSI 2264 campaign particularly suggests selective extinction by a population of large dust grains. Meanwhile, the gradual bluing observed while star B is setting is indicative of forward scattering effects at the edge of the ring. The spectral energy distribution of the system at its bright phase shows no evidence of infrared excess emission that can be attributed to radiation from the ring or other dust component out to 8 μm. 2016-05-23T21:46:36Z 2016-05-23T21:46:36Z 2016-03 2015-10 Article http://purl.org/eprint/type/JournalArticle 1538-3881 0004-6256 http://hdl.handle.net/1721.1/102636 Arulanantham, Nicole A., William Herbst, Ann Marie Cody, John R. Stauffer, Luisa M. Rebull, Eric Agol, Diana Windemuth, et al. “SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D).” The Astronomical Journal 151, no. 4 (March 8, 2016): 90. © 2016 The American Astronomical Society https://orcid.org/0000-0002-4265-047X en_US http://dx.doi.org/10.3847/0004-6256/151/4/90 The Astronomical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Arulanantham, Nicole A. Herbst, William Cody, Ann Marie Stauffer, John R. Rebull, Luisa M. Agol, Eric Windemuth, Diana Marengo, Massimo Hamilton, Catrina M. Mundt, Reinhard Johns-Krull, Christopher M. Gutermuth, Robert A. Winn, Joshua Nathan SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) |
| title | SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) |
| title_full | SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) |
| title_fullStr | SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) |
| title_full_unstemmed | SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) |
| title_short | SEEING THROUGH THE RING: NEAR-INFRARED PHOTOMETRY OF V582 MON (KH 15D) |
| title_sort | seeing through the ring near infrared photometry of v582 mon kh 15d |
| url | http://hdl.handle.net/1721.1/102636 https://orcid.org/0000-0002-4265-047X |
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