Search Results - "Buchhave, Lars A."

Ground-based Optical Transmission Spectroscopy of the Nearby Terrestrial Exoplanet LTT 1445Ab by Diamond-Lowe, Hannah, Mendonça, João M., Charbonneau, David, Buchhave, Lars A.

“…Abstract Nearby M-dwarf systems currently offer the most favorable opportunities for spectroscopic investigations of terrestrial exoplanet atmospheres. The LTT…”
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Three regimes of extrasolar planet radius inferred from host star metallicities by Buchhave, Lars A., Bizzarro, Martin, Latham, David W., Sasselov, Dimitar, Cochran, William D., Endl, Michael, Isaacson, Howard, Juncher, Diana, Marcy, Geoffrey W.

“…Analysis of the metallicities of more than 400 stars hosting 600 candidate extrasolar planets shows that the planets can be categorized by size into three…”
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IMPROVED SPECTROSCOPIC PARAMETERS FOR TRANSITING PLANET HOSTS by Torres, Guillermo, Fischer, Debra A, SOZZETTI, ALESSANDRO, Buchhave, Lars A, Winn, Joshua N, Holman, Matthew J, Carter, Joshua A

“…We report homogeneous spectroscopic determinations of the effective temperature, metallicity, and projected rotational velocity for the host stars of 56…”
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A super-Earth transiting a nearby low-mass star by Charbonneau, David, Berta, Zachory K., Irwin, Jonathan, Burke, Christopher J., Nutzman, Philip, Buchhave, Lars A., Lovis, Christophe, Bonfils, Xavier, Latham, David W., Udry, Stéphane, Murray-Clay, Ruth A., Holman, Matthew J., Falco, Emilio E., Winn, Joshua N., Queloz, Didier, Pepe, Francesco, Mayor, Michel, Delfosse, Xavier, Forveille, Thierry

“…A super-Earth with atmosphere 'Super-Earths' are extrasolar planets about two to ten times the mass of the Earth, too small to be considered 'Jupiters'…”
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The Detection and Characterization of a Nontransiting Planet by Transit Timing Variations by Nesvorný, David, Kipping, David M., Buchhave, Lars A., Bakos, Gáspár Á., Hartman, Joel, Schmitt, Allan R.

“…The Kepler mission is monitoring the brightness of ~150,000 stars, searching for evidence of planetary transits. As part of the Hunt for Exomoons with Kepler…”
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Transmission Spectroscopy of the Lowest-density Gas Giant: Metals and a Potential Extended Outflow in HAT-P-67b by Bello-Arufe, Aaron, Knutson, Heather A., Mendonça, João M., Zhang, Michael M., Cabot, Samuel H. C., Rathcke, Alexander D., Ulla, Ana, Vissapragada, Shreyas, Buchhave, Lars A.

“…Abstract Extremely low-density exoplanets are tantalizing targets for atmospheric characterization because of their promisingly large signals in transmission…”
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Photon-weighted barycentric correction and its importance for precise radial velocities by Tronsgaard, René, Buchhave, Lars A, Wright, Jason T, Eastman, Jason D, Blackman, Ryan T

“…ABSTRACT When applying the barycentric correction to a precise radial velocity measurement, it is common practice to calculate its value only at the…”
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Kepler-102: Masses and Compositions for a Super-Earth and Sub-Neptune Orbiting an Active Star by Brinkman, Casey L., Cadman, James, Weiss, Lauren, Gaidos, Eric, Rice, Ken, Huber, Daniel, Claytor, Zachary R., Bonomo, Aldo S., Buchhave, Lars A., Cameron, Andrew Collier, Cosentino, Rosario, Dumusque, Xavier, Martinez Fiorenzano, Aldo F., Ghedina, Adriano, Harutyunyan, Avet, Howard, Andrew, Isaacson, Howard, Latham, David W., López-Morales, Mercedes, Malavolta, Luca, Micela, Giuseppina, Molinari, Emilio, Pepe, Francesco, Philips, David F., Poretti, Ennio, Sozzetti, Alessandro, Udry, Stéphane

“…Abstract Radial velocity (RV) measurements of transiting multiplanet systems allow us to understand the densities and compositions of planets unlike those in…”
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The Mass of the White Dwarf Companion in the Self-lensing Binary KOI-3278: Einstein versus Newton by Yahalomi, Daniel A., Shvartzvald, Yossi, Agol, Eric, Shporer, Avi, Latham, David W., Kruse, Ethan, Brewer, John M., Buchhave, Lars A., Fulton, Benjamin J., Howard, Andrew W., Isaacson, Howard, Petigura, Erik A., Quinn, Samuel N.

“…KOI-3278 is a self-lensing stellar binary consisting of a white dwarf secondary orbiting a Sun-like primary star. Kruse & Agol noticed small periodic…”
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THE METALLICITIES OF STARS WITH AND WITHOUT TRANSITING PLANETS by Buchhave, Lars A., Latham, David W.

“…ABSTRACT Host star metallicities have been used to infer observational constraints on planet formation throughout the history of the exoplanet field. The giant…”
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A red giant orbiting a black hole by El-Badry, Kareem, Rix, Hans-Walter, Cendes, Yvette, Rodriguez, Antonio C, Conroy, Charlie, Quataert, Eliot, Hawkins, Keith, Zari, Eleonora, Hobson, Melissa, Breivik, Katelyn, Rau, Arne, Berger, Edo, Shahaf, Sahar, Seeburger, Rhys, Burdge, Kevin B, Latham, David W, Buchhave, Lars A, Bieryla, Allyson, Bashi, Dolev, Mazeh, Tsevi, Faigler, Simchon

“…ABSTRACT We report spectroscopic and photometric follow-up of a dormant black hole (BH) candidate from Gaia DR3. The system, which we call Gaia BH2, contains a…”
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Jupiter Analogs Orbit Stars with an Average Metallicity Close to That of the Sun by Buchhave, Lars A., Bitsch, Bertram, Johansen, Anders, Latham, David W., Bizzarro, Martin, Bieryla, Allyson, Kipping, David M.

“…Jupiter played an important role in determining the structure and configuration of the Solar System. Whereas hot-Jupiter type exoplanets preferentially form…”
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Occurrence and core-envelope structure of 1–4× Earth-size planets around Sun-like stars by Marcy, Geoffrey W., Weiss, Lauren M., Petigura, Erik A., Isaacson, Howard, Howard, Andrew W., Buchhave, Lars A.

“…Small planets, 1–4× the size of Earth, are extremely common around Sun-like stars, and surprisingly so, as they are missing in our solar system. Recent…”
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Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes by Huber, Daniel, Zinn, Joel, Bojsen-Hansen, Mathias, Pinsonneault, Marc, Sahlholdt, Christian, Serenelli, Aldo, Aguirre, Victor Silva, Stassun, Keivan, Stello, Dennis, Tayar, Jamie, Bastien, Fabienne, Bedding, Timothy R., Buchhave, Lars A., Chaplin, William J., Davies, Guy R., García, Rafael A., Latham, David W., Mathur, Savita, Mosser, Benoit, Sharma, Sanjib

“…We present a comparison of parallaxes and radii from asteroseismology and Gaia DR1 (TGAS) for 2200 Kepler stars spanning from the main sequence to the…”
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Modelling the 3D climate of Venus with oasis by Mendonça, João M, Buchhave, Lars A

“…ABSTRACT Flexible 3D models to explore the vast diversity of terrestrial planets and interpret observational data are still in their early stages. In this…”
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Mining the Ultrahot Skies of HAT-P-70b: Detection of a Profusion of Neutral and Ionized Species by Bello-Arufe, Aaron, Cabot, Samuel H. C., Mendonça, João M., Buchhave, Lars A., Rathcke, Alexander D.

“…Abstract With an equilibrium temperature above 2500 K, the recently discovered HAT-P-70b belongs to a new class of exoplanets known as ultrahot Jupiters:…”
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An ultrahot gas-giant exoplanet with a stratosphere by Evans, Thomas M., Sing, David K., Kataria, Tiffany, Goyal, Jayesh, Nikolov, Nikolay, Wakeford, Hannah R., Deming, Drake, Marley, Mark S., Amundsen, David S., Ballester, Gilda E., Barstow, Joanna K., Ben-Jaffel, Lotfi, Bourrier, Vincent, Buchhave, Lars A., Cohen, Ofer, Ehrenreich, David, García Muñoz, Antonio, Henry, Gregory W., Knutson, Heather, Lavvas, Panayotis, Etangs, Alain Lecavelier des, Lewis, Nikole K., López-Morales, Mercedes, Mandell, Avi M., Sanz-Forcada, Jorge, Tremblin, Pascal, Lupu, Roxana

“…Observations of the gas-giant exoplanet WASP-121b reveal near-infrared emission lines of water, suggesting that the planet has a stratosphere—a layer in the…”
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KOI-142, THE KING OF TRANSIT VARIATIONS, IS A PAIR OF PLANETS NEAR THE 2:1 RESONANCE by NESVORNY, DAVID, Kipping, David, Terrell, Dirk, Hartman, Joel, Bakos, Gaspar A, Buchhave, Lars A

“…The transit timing variations (TTVs) can be used as a diagnostic of gravitational interactions between planets in a multi-planet system. Many Kepler Objects of…”
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Wide post-common envelope binaries containing ultramassive white dwarfs: evidence for efficient envelope ejection in massive asymptotic giant branch stars by Yamaguchi, Natsuko, El-Badry, Kareem, Fuller, Jim, Latham, David W, Cargile, Phillip A, Mazeh, Tsevi, Shahaf, Sahar, Bieryla, Allyson, Buchhave, Lars A, Hobson, Melissa

“…ABSTRACT Post-common envelope binaries (PCEBs) containing a white dwarf (WD) and a main-sequence (MS) star can constrain the physics of common envelope…”
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TRANSITS AND OCCULTATIONS OF AN EARTH-SIZED PLANET IN AN 8.5 hr ORBIT by Sanchis-Ojeda, Roberto, Rappaport, Saul, Winn, Joshua N, Levine, Alan, KOTSON, MICHAEL C, Latham, David W, Buchhave, Lars A

“…We report the discovery of an Earth-sized planet (1.16 + or - 0.19 R sub([+ in circle])) in an 8.5 hr orbit around a late G-type star (KIC 8435766, Kepler-xx)…”
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