A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission
We present time series photometry and constraints on additional planets in five of the exoplanetary systems studied by the EPOCh (Extrasolar Planet Observation and Characterization) component of the NASA EPOXI mission: HAT-P-4, TrES-3, TrES-2, WASP-3, and HAT-P-7. We conduct a search of the high-pre...
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
IOP Publishing
2012
|
| Online Access: | http://hdl.handle.net/1721.1/74160 https://orcid.org/0000-0002-6892-6948 |
| _version_ | 1811085524491829248 |
|---|---|
| author | Ballard, Sarah Christiansen, Jessie L. Charbonneau, David Deming, Drake Holman, Matthew J. A'Hearn, Michael F. Wellnitz, Dennis D. Barry, Richard K. Kuchner, Marc J. Livengood, Timothy A. Hewagama, Tilak Sunshine, Jessica M. Hampton, Don L. Lisse, Carey M. Seager, Sara Veverka, Joseph F. |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Ballard, Sarah Christiansen, Jessie L. Charbonneau, David Deming, Drake Holman, Matthew J. A'Hearn, Michael F. Wellnitz, Dennis D. Barry, Richard K. Kuchner, Marc J. Livengood, Timothy A. Hewagama, Tilak Sunshine, Jessica M. Hampton, Don L. Lisse, Carey M. Seager, Sara Veverka, Joseph F. |
| author_sort | Ballard, Sarah |
| collection | MIT |
| description | We present time series photometry and constraints on additional planets in five of the exoplanetary systems studied by the EPOCh (Extrasolar Planet Observation and Characterization) component of the NASA EPOXI mission: HAT-P-4, TrES-3, TrES-2, WASP-3, and HAT-P-7. We conduct a search of the high-precision time series for photometric transits of additional planets. We find no candidate transits with significance higher than our detection limit. From Monte Carlo tests of the time series using putative periods from 0.5 days to 7 days, we demonstrate the sensitivity to detect Neptune-sized companions around TrES-2, sub-Saturn-sized companions in the HAT-P-4, TrES-3, and WASP-3 systems, and Saturn-sized companions around HAT-P-7. We investigate in particular our sensitivity to additional transits in the dynamically favorable 3:2 and 2:1 exterior resonances with the known exoplanets: if we assume coplanar orbits with the known planets, then companions in these resonances with HAT-P-4b, WASP-3b, and HAT-P-7b would be expected to transit, and we can set lower limits on the radii of companions in these systems. In the nearly grazing exoplanetary systems TrES-3 and TrES-2, additional coplanar planets in these resonances are not expected to transit. However, we place lower limits on the radii of companions that would transit if the orbits were misaligned by 2:0 and 1:4 for TrES-3 and TrES-2, respectively. |
| first_indexed | 2024-09-23T13:10:57Z |
| format | Article |
| id | mit-1721.1/74160 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:10:57Z |
| publishDate | 2012 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/741602022-09-28T12:27:53Z A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission Ballard, Sarah Christiansen, Jessie L. Charbonneau, David Deming, Drake Holman, Matthew J. A'Hearn, Michael F. Wellnitz, Dennis D. Barry, Richard K. Kuchner, Marc J. Livengood, Timothy A. Hewagama, Tilak Sunshine, Jessica M. Hampton, Don L. Lisse, Carey M. Seager, Sara Veverka, Joseph F. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Seager, Sara We present time series photometry and constraints on additional planets in five of the exoplanetary systems studied by the EPOCh (Extrasolar Planet Observation and Characterization) component of the NASA EPOXI mission: HAT-P-4, TrES-3, TrES-2, WASP-3, and HAT-P-7. We conduct a search of the high-precision time series for photometric transits of additional planets. We find no candidate transits with significance higher than our detection limit. From Monte Carlo tests of the time series using putative periods from 0.5 days to 7 days, we demonstrate the sensitivity to detect Neptune-sized companions around TrES-2, sub-Saturn-sized companions in the HAT-P-4, TrES-3, and WASP-3 systems, and Saturn-sized companions around HAT-P-7. We investigate in particular our sensitivity to additional transits in the dynamically favorable 3:2 and 2:1 exterior resonances with the known exoplanets: if we assume coplanar orbits with the known planets, then companions in these resonances with HAT-P-4b, WASP-3b, and HAT-P-7b would be expected to transit, and we can set lower limits on the radii of companions in these systems. In the nearly grazing exoplanetary systems TrES-3 and TrES-2, additional coplanar planets in these resonances are not expected to transit. However, we place lower limits on the radii of companions that would transit if the orbits were misaligned by 2:0 and 1:4 for TrES-3 and TrES-2, respectively. 2012-10-19T18:30:23Z 2012-10-19T18:30:23Z 2011-04 2010-12 Article http://purl.org/eprint/type/JournalArticle 0004-6256 1538-3881 http://hdl.handle.net/1721.1/74160 Ballard, Sarah et al. “A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission.” The Astrophysical Journal 732.1 (2011): 41. © 2011 IOP Publishing https://orcid.org/0000-0002-6892-6948 en_US http://dx.doi.org/10.1088/0004-637x/732/1/41 Astrophysical 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 |
| spellingShingle | Ballard, Sarah Christiansen, Jessie L. Charbonneau, David Deming, Drake Holman, Matthew J. A'Hearn, Michael F. Wellnitz, Dennis D. Barry, Richard K. Kuchner, Marc J. Livengood, Timothy A. Hewagama, Tilak Sunshine, Jessica M. Hampton, Don L. Lisse, Carey M. Seager, Sara Veverka, Joseph F. A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission |
| title | A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission |
| title_full | A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission |
| title_fullStr | A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission |
| title_full_unstemmed | A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission |
| title_short | A Search for Additional Planets in Five of the Exoplanetary Systems Studied by the Nasa Epoxi Mission |
| title_sort | search for additional planets in five of the exoplanetary systems studied by the nasa epoxi mission |
| url | http://hdl.handle.net/1721.1/74160 https://orcid.org/0000-0002-6892-6948 |
| work_keys_str_mv | AT ballardsarah asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT christiansenjessiel asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT charbonneaudavid asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT demingdrake asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT holmanmatthewj asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT ahearnmichaelf asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT wellnitzdennisd asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT barryrichardk asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT kuchnermarcj asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT livengoodtimothya asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT hewagamatilak asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT sunshinejessicam asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT hamptondonl asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT lissecareym asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT seagersara asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT veverkajosephf asearchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT ballardsarah searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT christiansenjessiel searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT charbonneaudavid searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT demingdrake searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT holmanmatthewj searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT ahearnmichaelf searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT wellnitzdennisd searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT barryrichardk searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT kuchnermarcj searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT livengoodtimothya searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT hewagamatilak searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT sunshinejessicam searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT hamptondonl searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT lissecareym searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT seagersara searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission AT veverkajosephf searchforadditionalplanetsinfiveoftheexoplanetarysystemsstudiedbythenasaepoximission |