Utilizing a global network of telescopes to update the ephemeris for the highly eccentric planet HD 80606 b and to ensure the efficient scheduling of JWST
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2022
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866929478863683584 |
|---|---|
| author | Pearson, Kyle A. Beichman, Chas Fulton, Benjamin J. Esposito, Thomas M. Zellem, Robert T. Ciardi, David R. Rolfness, Jonah Engelke, John Fatahi, Tamim Zimmerman-Brachman, Rachel Avsar, Arin Bhalerao, Varun Boyce, Pat Bretton, Marc Burnett, Alexandra D. Burt, Jennifer Fowler, Martin Gallego, Daniel Gomez, Edward Guillet, Bruno Hilburn, Jerry Jongen, Yves Kataria, Tiffany Kokori, Anastasia Kumar, Harsh Kuossari, Petri Lekkas, Georgios Marchini, Alessandro Meneghelli, Nicola Ngeow, Chow-Choong Primm, Michael Samantaray, Subham Shimizu, Masao Silvis, George Sienkiewicz, Frank Swain, Vishwajeet Tan, Joshua Tock, Kalee Wagner, Kevin Wünsche, Anaël |
| author_facet | Pearson, Kyle A. Beichman, Chas Fulton, Benjamin J. Esposito, Thomas M. Zellem, Robert T. Ciardi, David R. Rolfness, Jonah Engelke, John Fatahi, Tamim Zimmerman-Brachman, Rachel Avsar, Arin Bhalerao, Varun Boyce, Pat Bretton, Marc Burnett, Alexandra D. Burt, Jennifer Fowler, Martin Gallego, Daniel Gomez, Edward Guillet, Bruno Hilburn, Jerry Jongen, Yves Kataria, Tiffany Kokori, Anastasia Kumar, Harsh Kuossari, Petri Lekkas, Georgios Marchini, Alessandro Meneghelli, Nicola Ngeow, Chow-Choong Primm, Michael Samantaray, Subham Shimizu, Masao Silvis, George Sienkiewicz, Frank Swain, Vishwajeet Tan, Joshua Tock, Kalee Wagner, Kevin Wünsche, Anaël |
| contents | The transiting planet HD80606b undergoes a 1000-fold increase in insolation during its 111-day orbit due to it being highly eccentric (e=0.93). The planet's effective temperature increases from 400K to over 1400K in a few hours as it makes a rapid passage to within 0.03AU of its host star during periapsis. Spectroscopic observations during the eclipse (which is conveniently oriented a few hours before periapsis) of HD80606b with the James Webb Space Telescope (JWST) are poised to exploit this highly variable environment to study a wide variety of atmospheric properties, including composition, chemical and dynamical timescales, and large scale atmospheric motions. Critical to planning and interpreting these observations is an accurate knowledge of the planet's orbit. We report on observations of two full-transit events: 7 February 2020 as observed by the TESS spacecraft and 7--8 December 2021 as observed with a worldwide network of small telescopes. We also report new radial velocity observations which when analyzed with a coupled model to the transits greatly improve the planet's orbital ephemeris. Our new orbit solution reduces the uncertainty in the transit and eclipse timing of the JWST era from tens of minutes to a few minutes. When combined with the planned JWST observations, this new precision may be adequate to look for non-Keplerian effects in the orbit of HD80606b. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2208_14520 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Utilizing a global network of telescopes to update the ephemeris for the highly eccentric planet HD 80606 b and to ensure the efficient scheduling of JWST Pearson, Kyle A. Beichman, Chas Fulton, Benjamin J. Esposito, Thomas M. Zellem, Robert T. Ciardi, David R. Rolfness, Jonah Engelke, John Fatahi, Tamim Zimmerman-Brachman, Rachel Avsar, Arin Bhalerao, Varun Boyce, Pat Bretton, Marc Burnett, Alexandra D. Burt, Jennifer Fowler, Martin Gallego, Daniel Gomez, Edward Guillet, Bruno Hilburn, Jerry Jongen, Yves Kataria, Tiffany Kokori, Anastasia Kumar, Harsh Kuossari, Petri Lekkas, Georgios Marchini, Alessandro Meneghelli, Nicola Ngeow, Chow-Choong Primm, Michael Samantaray, Subham Shimizu, Masao Silvis, George Sienkiewicz, Frank Swain, Vishwajeet Tan, Joshua Tock, Kalee Wagner, Kevin Wünsche, Anaël Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics The transiting planet HD80606b undergoes a 1000-fold increase in insolation during its 111-day orbit due to it being highly eccentric (e=0.93). The planet's effective temperature increases from 400K to over 1400K in a few hours as it makes a rapid passage to within 0.03AU of its host star during periapsis. Spectroscopic observations during the eclipse (which is conveniently oriented a few hours before periapsis) of HD80606b with the James Webb Space Telescope (JWST) are poised to exploit this highly variable environment to study a wide variety of atmospheric properties, including composition, chemical and dynamical timescales, and large scale atmospheric motions. Critical to planning and interpreting these observations is an accurate knowledge of the planet's orbit. We report on observations of two full-transit events: 7 February 2020 as observed by the TESS spacecraft and 7--8 December 2021 as observed with a worldwide network of small telescopes. We also report new radial velocity observations which when analyzed with a coupled model to the transits greatly improve the planet's orbital ephemeris. Our new orbit solution reduces the uncertainty in the transit and eclipse timing of the JWST era from tens of minutes to a few minutes. When combined with the planned JWST observations, this new precision may be adequate to look for non-Keplerian effects in the orbit of HD80606b. |
| title | Utilizing a global network of telescopes to update the ephemeris for the highly eccentric planet HD 80606 b and to ensure the efficient scheduling of JWST |
| topic | Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2208.14520 |