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The β Pictoris b Hi...
The β Pictoris b Hill sphere transit campaign : II.Searching for the signatures of the β Pictoris exoplanets through time delay analysis of the δ Scuti pulsations
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- Zieba, Sebastian (författare)
- Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.;Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands.;Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25, A-6020 Innsbruck, Austria.
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- Zwintz, Konstanze (författare)
- Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25, A-6020 Innsbruck, Austria.
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- Kenworthy, Matthew (författare)
- Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands.
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visa fler...
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- Hey, Daniel (författare)
- Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA.
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- Murphy, Simon J. (författare)
- Univ Southern Queensland, Ctr Astrophys, Toowoomba, Qld 4350, Australia.
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- Kuschnig, Rainer (författare)
- Karl Franzens Univ Graz, Inst Phys, Univ Pl 5-2, A-8010 Graz, Austria.
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- Abe, Lyu (författare)
- Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, F-06304 Nice 4, France.
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- Agabi, Abdelkrim (författare)
- Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, F-06304 Nice 4, France.
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- Mekarnia, Djamel (författare)
- Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, F-06304 Nice 4, France.
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- Guillot, Tristan (författare)
- Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, F-06304 Nice 4, France.
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- Schmider, Francois-Xavier (författare)
- Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, F-06304 Nice 4, France.
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- Stee, Philippe (författare)
- Univ Cote Azur, Observ Cote Azur, CNRS, Lab Lagrange, Bd Observ CS 34229, F-06304 Nice 4, France.
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- De Pra, Yuri (författare)
- Italian Natl Agcy New Technol, Energy & Sustainable Econ Dev ENEA, Via Anguillarese 301, Rome, Italy.
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- Buttu, Marco (författare)
- Concordia Stn, Inst Polaire Francais Paul Emile Victor & Program, Sydney, NSW, Australia.;Ist Nazl Astrofis, Osservatorio Astron Cagliari, Cagliari, Italy.
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- Crouzet, Nicolas (författare)
- Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands.
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- Mellon, Samuel (författare)
- Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.
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- Bailey, Jeb, III (författare)
- Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
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- Stuik, Remko (författare)
- Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands.
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- Dorval, Patrick (författare)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Talens, Geert Jan (författare)
- Univ Oxford, Dept Phys, Oxford OX1 3RH, England.
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- Crawford, Steven (författare)
- Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA.;South African Astron Observ, ZA-7935 Cape Town, South Africa.
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- Mamajek, Eric (författare)
- Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.;CALTECH, Jet Prop Lab, 4800 Oak Grove Dr M-S321-100, Pasadena, CA 91109 USA.
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- Laginja, Iva (författare)
- Univ Paris, Univ PSL, Sorbonne Univ, LESIA,CNRS,Observ Paris, 5 Pl Jules Janssen, F-92195 Meudon, France.
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- Ireland, Michael (författare)
- Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia.
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- Lomberg, Blaine (författare)
- South African Astron Observ, ZA-7935 Cape Town, South Africa.;Univ Cape Town, Dept Astron, ZA-7700 Rondebosch, South Africa. Univ Calif Berkeley, Astron Dept, Berkeley, CA 94720 USA.
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- Kuhn, Rudi (författare)
- South African Astron Observ, ZA-7935 Cape Town, South Africa.
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- Snellen, Ignas (författare)
- Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands.
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- Kalas, Paul (författare)
- SETI Inst, Carl Sagan Ctr, 189 Bernardo Ave, Mountain View, CA 94043 USA.;FORTH, Inst Astrophys, GR-71110 Iraklion, Greece.;Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA.;Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
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- Wang, Jason J. (författare)
- Johns Hopkins APL, Laurel, MD USA.
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- Stevenson, Kevin B. (författare)
- Johns Hopkins Appl Phys Lab, 11100 Johns Hopkins Rd, Laurel, MD 20723 USA.
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- de Mooij, Ernst (författare)
- Dublin City Univ, Sch Phys Sci, Dublin, Ireland.;Dublin City Univ, Ctr Astrophys & Relat, Dublin, Ireland.;Univ Grenoble Alpes, IPAG, CNRS, F-38000 Grenoble, France.
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- Lagrange, Anne-Marie (författare)
- Univ Paris, Univ PSL, Sorbonne Univ, LESIA,CNRS,Observ Paris, 5 Pl Jules Janssen, F-92195 Meudon, France.;Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France.
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- Lacour, Sylvestre (författare)
- Univ Paris, Univ PSL, Sorbonne Univ, LESIA,CNRS,Observ Paris, 5 Pl Jules Janssen, F-92195 Meudon, France.;European Southern Observ, Karl-Schwarzschild-Str 2, D-85748 Garching, Germany.
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- Nowak, Mathias (författare)
- Inst Astron, Madingley Rd, Cambridge CB3 0HA, England.
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- Strom, Paul A. (författare)
- Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England.;Univ Warwick, Ctr Exoplanets & Habitabil, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England.
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- Hui, Zhang (författare)
- Chinese Acad Sci, Shanghai Observ, Shanghai, Peoples R China.
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- Wang, Lifan (författare)
- Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China.
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Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany;Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands.;Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25, A-6020 Innsbruck, Austria. Univ Innsbruck, Inst Astro & Teilchenphys, Technikerstr 25, A-6020 Innsbruck, Austria. (creator_code:org_t)
- EDP Sciences, 2024
- 2024
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 687
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The β Pictoris system is the closest known stellar system with directly detected gas giant planets, an edge-on circumstellar disc, and evidence of falling sublimating bodies and transiting exocomets. The inner planet, β Pictoris c, has also been indirectly detected with radial velocity (RV) measurements. The star is a known δ Scuti pulsator, and the long-term stability of these pulsations opens up the possibility of indirectly detecting the gas giant planets through time delays of the pulsations due to a varying light travel time. We search for phase shifts in the δ Scuti pulsations consistent with the known planets β Pictoris b and c and carry out an analysis of the stellar pulsations of β Pictoris over a multi-year timescale. We used photometric data collected by the BRITE-Constellation, bRing, ASTEP, and TESS to derive a list of the strongest and most significant δ Scuti pulsations. We carried out an analysis with the open-source python package maelstrom to study the stability of the pulsation modes of β Pictoris in order to determine the long-term trends in the observed pulsations. We did not detect the expected signal for β Pictoris b or β Pictoris c. The expected time delay is 6 s for β Pictoris c and 24 s for β Pictoris b. With simulations, we determined that the photometric noise in all the combined data sets cannot reach the sensitivity needed to detect the expected timing drifts. An analysis of the pulsational modes of β Pictoris using maelstrom showed that the modes themselves drift on the timescale of a year, fundamentally limiting our ability to detect exoplanets around β Pictoris via pulsation timing.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- asteroseismology
- methods: observational
- techniques: photometric
- planets and satellites: general
- stars: individual: beta pictoris
- stars: variables: delta Scuti
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Zieba, Sebastian
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Zwintz, Konstanz ...
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Kenworthy, Matth ...
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Hey, Daniel
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Murphy, Simon J.
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Kuschnig, Rainer
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visa fler...
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Abe, Lyu
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Agabi, Abdelkrim
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Mekarnia, Djamel
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Guillot, Tristan
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Schmider, Franco ...
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Stee, Philippe
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De Pra, Yuri
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Buttu, Marco
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Crouzet, Nicolas
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Mellon, Samuel
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Bailey, Jeb, III
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Stuik, Remko
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Dorval, Patrick
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Talens, Geert Ja ...
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Crawford, Steven
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Mamajek, Eric
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Laginja, Iva
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Ireland, Michael
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Lomberg, Blaine
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Kuhn, Rudi
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Snellen, Ignas
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Kalas, Paul
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Wang, Jason J.
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Stevenson, Kevin ...
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de Mooij, Ernst
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Lagrange, Anne-M ...
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Lacour, Sylvestr ...
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Nowak, Mathias
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Strom, Paul A.
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Hui, Zhang
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Wang, Lifan
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