Výsledky vyhledávání - "Fergal Mullally"

Akademický článek

JWST Directly Images Giant Planet Candidates Around Two Metal-polluted White Dwarf Stars

Autor: Susan E. Mullally, John Debes, Misty Cracraft, Fergal Mullally, Sabrina Poulsen, Loic Albert, Katherine Thibault, William T. Reach, J. J. Hermes, Thomas Barclay, Mukremin Kilic, Elisa V. Quintana

Publikováno v: The Astrophysical Journal Letters, Vol 962, Iss 2, p L32 (2024)

We report the discovery of two directly imaged, giant planet candidates orbiting the metal-rich, hydrogen atmosphere white dwarfs WD 1202−232 and WD 2105−82. JWST’s Mid-Infrared Instrument (MIRI) data on these two stars show a nearby resolved s

Externí odkaz: https://doaj.org/article/f8f8b740b16f4d1eb2904ad542996a59

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Akademický článek

A MIRI Search for Planets and Dust around WD 2149+021

Autor: Sabrina Poulsen, John Debes, Misty Cracraft, Susan E. Mullally, William T. Reach, Mukremin Kilic, Fergal Mullally, Loic Albert, Katherine Thibault, J. J. Hermes, Thomas Barclay, Elisa V. Quintana

Publikováno v: The Astronomical Journal, Vol 167, Iss 6, p 257 (2024)

The launch of JWST has ushered in a new era of high-precision infrared astronomy, allowing us to probe nearby white dwarfs for cold dust, exoplanets, and tidally heated exomoons. While previous searches for these exoplanets have successfully ruled ou

Externí odkaz: https://doaj.org/article/be9090b6ea8745808eb3d9cbf99c90f1

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Periodic optical variability and debris accretion in white dwarfs: a test for a causal connection*

Autor: Mukremin Kilic, Tsevi Mazeh, Abraham Loeb, Fergal Mullally, Warren R. Brown, Alekzander Kosakowski, Eric Agol, Na'ama Hallakoun, Patrick Dufour, Jay Farihi, Boris T. Gänsicke, Dan Maoz

Publikováno v: Monthly Notices of the Royal Astronomical Society. 476:933-942

Recent Kepler photometry has revealed that about half of white dwarfs (WDs) have periodic, low-level (~ 1e-4 - 1e-3), optical variations. Hubble Space Telescope (HST) ultraviolet spectroscopy has shown that up to about one half of WDs are actively ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86718d05304a12c87d93cb0e25f60043
https://doi.org/10.1093/mnras/sty257

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The Pulsating White Dwarf G117-B15A: Still the Most Stable Optical Clock Known

Autor: J. J. Hermes, Michael H. Montgomery, Paul Chote, Fergal Mullally, Alejandra D. Romero, D. Chandler, K. I. Winget, Donald E Winget, Steven DeGennaro, Staszek Zola, Souza Oliveira Kepler, Kurtis A. Williams, Keaton J. Bell, Zachary P. Vanderbosch, Barbara G. Castanheira, Elizabeth J. Jeffery, Jamile K. Fritzen

Publikováno v: The Astrophysical Journal. 906:7

The pulsating hydrogen atmosphere white dwarf star G 117-B15A has been observed since 1974. Its main pulsation period at 215.19738823(63) s, observed in optical light curves, varies by only (5.12+/-0.82)x10^{-15} s/s and shows no glitches, as pulsars

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9e2f00f218477daf7a77d4d9e4579f8
https://doi.org/10.3847/1538-4357/abc626

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The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data

Autor: Savita Mathur, Daniel Huber, Jennifer R. Campbell, Megan Shabram, Janice Voss, Jeffrey L. Coughlin, Guillermo Torres, Edward W. Dunham, Bruce D. Clarke, Laurance R. Doyle, Susan E. Mullally, Alan P. Boss, John Troeltzsch, Michael R. Haas, Jeffrey Van Cleve, Andrej Prsa, D. T. Sanderfer, Jeffrey C. Smith, Steve Bryson, Lauren M. Weiss, Christopher E. Henze, William F. Welsh, Elisa V. Quintana, Timothy D. Morton, Avi Shporer, Ravi Kumar Kopparapu, Fergal Mullally, Andrea K. Dupree, Jeffery J. Kolodziejczak, Joseph Catanzarite, Eric B. Ford, Solange V. Ramirez, Forrest R. Girouard, Michael Endl, Dimitar Sasselov, Christopher K. Middour, Travis A. Berger, William D. Cochran, Jørgen Christensen-Dalsgaard, Jessie L. Dotson, James L. Fanson, Natalie M. Batalha, Alan Gould, Christopher Allen, K. Larson, Jie Li, Jon M. Jenkins, Jason H. Steffen, Thomas N. Gautier, John C. Geary, Hema Chandrasekaran, Shawn Seader, Douglas A. Caldwell, Maura Fujieh, Lars A. Buchhave, Victor Silva Aguirre, Robert L. Morris, William J. Borucki, Joseph D. Twicken, David R. Ciardi, David W. Latham, Ronald L. Gilliland, Michelle Kunimoto, Steve B. Howell, Soren Meibom, Hans Kjeldsen, Andrew W. Howard, Khadeejah A. Zamudio, Darin Ragozzine, B. Wohler, William J. Chaplin, Jessie L. Christiansen, D. Pletcher, Samuel N. Quinn, Roger C. Hunter, Matthew J. Holman, Martin Still, Christopher J. Burke, David G. Koch, Geert Barentsen, Eduardo Seperuelo Duarte, Akm Kamal Uddin

Publikováno v: Bryson, S, Kunimoto, M, Kopparapu, R K, Coughlin, J L, Borucki, W J, Koch, D, Aguirre, V S, Allen, C, Barentsen, G, Batalha, N M, Berger, T, Boss, A, Buchhave, L A, Burke, C J, Caldwell, D A, Campbell, J R, Catanzarite, J, Chandrasekaran, H, Chaplin, W J, Christiansen, J L, Christensen-Dalsgaard, J R, Ciardi, D R, Clarke, B D, Cochran, W D, Dotson, J L, Doyle, L R, Duarte, E S, Dunham, E W, Dupree, A K, Endl, M, Fanson, J L, Ford, E B, Fujieh, M, Gautier, T N, Geary, J C, Gilliland, R L, Girouard, F R, Gould, A, Haas, M R, Henze, C E, Holman, M J, Howard, A W, Howell, S B, Huber, D, Hunter, R C, Jenkins, J M, Kjeldsen, H, Kolodziejczak, J, Larson, K, Latham, D W, Li, J, Mathur, S, Meibom, S R, Middour, C, Morris, R L, Morton, T D, Mullally, F, Mullally, S E, Pletcher, D, Prsa, A, Quinn, S N, Quintana, E V, Ragozzine, D, Ramirez, S V, Sanderfer, D T, Sasselov, D, Seader, S E, Shabram, M, Shporer, A, Smith, J C, Steffen, J H, Still, M, Torres, G, Troeltzsch, J, Twicken, J D, Uddin, A K, Van Cleve, J E, Voss, J, Weiss, L M, Welsh, W F, Wohler, B & Zamudio, K A 2021, ' The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data ', Astronomical Journal, vol. 161, no. 1, 36 . https://doi.org/10.3847/1538-3881/abc418
Bryson, S, Kunimoto, M, Kopparapu, R K, Coughlin, J L, Borucki, W J, Koch, D, Aguirre, V S, Allen, C, Barentsen, G, Batalha, N M, Berger, T, Boss, A, Buchhave, L A, Burke, C J, Caldwell, D A, Campbell, J R, Catanzarite, J, Chandrasekaran, H, Chaplin, W J, Christiansen, J L, Christensen-Dalsgaard, J, Ciardi, D R, Clarke, B D, Cochran, W D, Dotson, J L, Doyle, L R, Duarte, E S, Dunham, E W, Dupree, A K, Endl, M, Fanson, J L, Ford, E B, Fujieh, M, III, T N G, Geary, J C, Gilliland, R L, Girouard, F R, Gould, A, Haas, M R, Henze, C E, Holman, M J, Howard, A W, Howell, S B, Huber, D, Hunter, R C, Jenkins, J M, Kjeldsen, H, Kolodziejczak, J, Larson, K, Latham, D W, Li, J, Mathur, S, Meibom, S, Middour, C, Morris, R L, Morton, T D, Mullally, F, Mullally, S E, Pletcher, D, Prsa, A, Quinn, S N, Quintana, E V, Ragozzine, D, Ramirez, S V, Sanderfer, D T, Sasselov, D, Seader, S E, Shabram, M, Shporer, A, Smith, J C, Steffen, J H, Still, M, Torres, G, Troeltzsch, J, Twicken, J D, Uddin, A K, Cleve, J E V, Voss, J, Weiss, L M, Welsh, W F, Wohler, B & Zamudio, K A 2021, ' The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data ', Astronomical Journal, vol. 161, no. 1, 36 . https://doi.org/10.3847/1538-3881/abc418

We present occurrence rates for rocky planets in the habitable zones (HZ) of main-sequence dwarf stars based on the Kepler DR25 planet candidate catalog and Gaia-based stellar properties. We provide the first analysis in terms of star-dependent inste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b314675cefdbc12585774f8511eb0c8
https://doi.org/10.3847/1538-3881/abc418

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Three's Company: An additional non-transiting super-Earth in the bright HD 3167 system, and masses for all three planets

Autor: Andrew Collier Cameron, David Ehrenreich, Heather A. Knutson, Giuseppina Micela, Lars A. Buchhave, Konstantin Batygin, Fatemeh Motalebi, John M. Brewer, Luca Malavolta, Christophe Lovis, Dimitar Sasselov, Leslie A. Rogers, Molly R. Kosiarek, Andrew W. Howard, Trent J. Dupuy, Jeffrey L. Coughlin, Susan E. Thompson, David W. Latham, Francesco Pepe, Erik A. Petigura, David F. Phillips, Howard Isaacson, Brad M. S. Hansen, Lauren M. Weiss, Ian J. M. Crossfield, Joshua E. Schlieder, Benjamin J. Fulton, Thomas Henning, Aldo F. M. Fiorenzano, Jessie L. Christiansen, Fergal Mullally, Bradford P. Holden, Alessandro Sozzetti, Rosario Cosentino, David R. Ciardi, John Asher Johnson, Emilio Molinari, Courtney D. Dressing, Evan Sinukoff, Stéphane Udry, Damien Ségransan, Giampaolo Piotto, Mercedes Lopez-Morales, Andrew Vanderburg, Björn Benneke, Jennifer Burt, Annelies Mortier, François Bouchy, Natasha E. Batalha, Michel Mayor, David Charbonneau, Steven S. Vogt, Ken Rice, Christopher A. Watson, Travis S. Barman, Thomas P. Greene, Lea A. Hirsch, R. Paul Butler

Publikováno v: Christiansen, J L, Vanderburg, A, Burt, J, Fulton, B J, Batygin, K, Benneke, B, Brewer, J M, Charbonneau, D, Ciardi, D R, Collier Cameron, A, Coughlin, J L, Crossfield, I J M, Dressing, C D, Greene, T P, Howard, A W, Latham, D W, Molinari, E, Mortier, A, Mullally, F, Pepe, F, Rice, K, Sinukoff, E, Sozzetti, A, Thompson, S E, Udry, S, Vogt, S S, Barman, T S, Batalha, N E, Bouchy, F, Buchhave, L A, Butler, R P, Cosentino, R, Dupuy, T J, Ehrenreich, D, Fiorenzano, A F M, Hansen, B M S, Henning, T, Hirsch, L, Holden, B P, Isaacson, H T, Johnson, J A, Knutson, H A, Kosiarek, M, López-Morales, M, Lovis, C, Malavolta, L, Mayor, M, Micela, G, Motalebi, F, Petigura, E, Phillips, D F, Piotto, G, Rogers, L A, Sasselov, D, Schlieder, J E, Ségransan, D, Watson, C A & Weiss, L M 2017, ' Three’s Company: An Additional Non-transiting Super-Earth in the Bright HD 3167 System, and Masses for All Three Planets ', Astronomical Journal, vol. 154, no. 3 . < http://adsabs.harvard.edu/abs/2017arXiv170601892C >
Christiansen, J L, Vanderburg, A, Burt, J, Fulton, B J, Batygin, K, Benneke, B, Brewer, J M, Charbonneau, D, Ciardi, D R, Collier Cameron, A, Coughlin, J L, Crossfield, I J M, Dressing, C, Greene, T P, Howard, A W, Latham, D W, Molinari, E, Mortier, A, Mullally, F, Pepe, F, Rice, K, Sinukoff, E, Sozzetti, A, Thompson, S E, Udry, S, Vogt, S S, Barman, T S, Batalha, N E, Bouchy, F, Buchhave, L A, Butler, R P, Cosentino, R, Dupuy, T J, Ehrenreich, D, Fiorenzano, A, Hansen, B M S, Henning, T, Hirsch, L, Holden, B P, Isaacson, H T, Johnson, J A, Knutson, H A, Kosiarek, M, López-Morales, M, Lovis, C, Malavolta, L, Mayor, M, Micela, G, Motalebi, F, Petigura, E, Phillips, D F, Piotto, G, Rogers, L A, Sasselov, D, Schlieder, J E, Ségransan, D, Watson, C A & Weiss, L M 2017, ' Three’s Company: An Additional Non-transiting Super-Earth in the Bright HD 3167 System, and Masses for All Three Planets ', Astronomical Journal, vol. 154, no. 3, pp. 122 . https://doi.org/10.3847/1538-3881/aa832d
BASE-Bielefeld Academic Search Engine

HD 3167 is a bright (V = 8.9), nearby K0 star observed by the NASA K2 mission (EPIC 220383386), hosting two small, short-period transiting planets. Here we present the results of a multi-site, multi-instrument radial velocity campaign to characterize

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bb2672e9b46433fac1e93c85194849f
https://resolver.caltech.edu/CaltechAUTHORS:20170626-105440476

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The Pseudosynchronization of Binary Stars Undergoing Strong Tidal Interactions

Autor: Susan E. Thompson, Fergal Mullally, Jim Fuller, Mara Zimmerman, Avi Shporer, Kelly Hambleton

Eccentric binaries known as heartbeat stars experience strong dynamical tides as the stars pass through periastron, providing a laboratory to study tidal interactions. We measure the rotation periods of 24 heartbeat systems, using the Kepler light cu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57e063c6e11285490042501ceaf88a1b

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