Browsing by Author "Sarkis, P."

Now showing 1 - 18 of 18
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    A Highly Eccentric Warm Jupiter Orbiting TIC 237913194
    (2020) Schlecker, M.; Kossakowski, D.; Brahm, R.; Espinoza, N.; Henning, T.; Carone, L.; Molaverdikhani, K.; Trifonov, T.; Molliere, P.; Rojas Henriquez, Felipe Ignacio; Hobson, M. J.; Jordán Colzani, Andrés Cristóbal; Klahr, H.; Sarkis, P.; Bakos, G. A.; Bhatti, W.; Osip, D.; Suc, V.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J. N.; Jenkins, J. M.; Vezie, M.; Villasenor, J. N.; Rose, M. E.; Rodríguez, D. R.; Rodríguez, J. E.; Quinn, S. N.; Shporer, A.
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    Four Jovian planets around low-luminosity giant stars observed by the EXPRESS and PPPS
    (2021) Jones, M. I.; Wittenmyer, R.; Aguilera-Gomez, C.; Soto, M. G.; Torres, P.; Trifonov, T.; Jenkins, J. S.; Zapata, A.; Sarkis, P.; Zakhozhay, O.; Brahm, R.; Ramirez, R.; Santana, F.; Vines, J. I.; Diaz, M. R.; Vuckovic, M.; Pantoja, B.
    We report the discovery of planetary companions orbiting four low-luminosity giant stars with M-star between 1.04 and 1.39 M-circle dot. All four host stars have been independently observed by the EXoPlanets aRound Evolved StarS (EXPRESS) program and the Pan-Pacific Planet Search (PPPS). The companion signals were revealed by multi-epoch precision radial velocities obtained in nearly a decade. The planetary companions exhibit orbital periods between similar to 1.2 and 7.1 yr, minimum masses of m(p)sin i similar to 1.8-3.7 M-J, and eccentricities between 0.08 and 0.42. With these four new systems, we have detected planetary companions to 11 out of the 37 giant stars that are common targets in the EXPRESS and PPPS. After excluding four compact binaries from the common sample, we obtained a fraction of giant planets (m(p) greater than or similar to 1- 2 M-J) orbiting within 5 AU from their parent star of f = 33.3(-7.1)(+9.0)%. This fraction is slightly higher than but consistent at the 1 sigma level with previous results obtained by different radial velocity surveys. Finally, this value is substantially higher than the fraction predicted by planet formation models of gas giants around stars more massive than the Sun.
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    HATS-36b and 24 Other Transiting/Eclipsing Systems from the HATSouth-K2 Campaign 7 Program
    (2018) Bayliss. D.; Hartman, J.D.; Zhou, G.; Bakos, G.A.; Vanderburg, A.; Brahm Scott, Rafael; Jordán Colzani, Andrés Cristóbal; Espinoza, N.; Rabus, Markus; Suc, V.; Bento, J.; Mancini, L.; Ciceri, S.; Tan, T. G.; Penev, K.; Bhatti, W.; Vall-Borro, M. de; Csubry, Z.; Henning, Th.; Sarkis, P.; Lázár, J.; Papp, I.; Sári, P.
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    HATS-39b, HATS-40b, HATS-41b, and HATS-42b : three inflated hot Jupiters and a super-Jupiter transiting F stars
    (2018) Bento, J.; Hartman, J.; Bakos, G.; Bhatti, W.; Csubry, Z.; Penev, K.; Bayliss, D.; De Val-Borro, M.; Zhou, G.; Brahm Scott, Rafael; Espinoza Pérez, Néstor; Rabus, Markus; Jordán Colzani, Andrés Cristóbal; Suc, V.; Ciceri, S.; Sarkis, P.; Henning, T.; Mancini, L.; Tinney, C.
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    HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b : Four Warm Giant Planets Transiting K Dwarfs
    (2020) Hartman, J. D.; Jordán Colzani, Andrés Cristóbal; Bayliss, D.; Bakos, G. A.; Bento, J.; Bhatti, W.; Brahm Scott, Rafael; Csubry, Z.; Espinoza, N.; Henning, T.; Mancini, L.; Penev, K.; Rabus, Markus; Sarkis, P.; Suc, V.; de Val-Borro, M.; Zhou, G.; Crane, J. D.; Shectman, S.; Teske, J. K.; Wang, S. X.; Butler, R. P.; Lazar, J.; Papp, I.; Sari, P.; Anderson, D. R.; Hellier, C.; West, R. G.; Barkaoui, K.; Pozuelos, F. J.; Jehin, E.; Gillon, M.; Nielsen, L.; Lendl, M.; Udry, S.; Ricker, G. R.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J. N.; Christiansen, J.; Crossfield, I. J. M.; Henze, C. E.; Jenkins, J. M.; Smith, J. C.; Ting, E. B.
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    HATS-50b through HATS-53b : four transiting hot jupiters orbiting G-type stars discovered by the HATsouth survey
    (2018) Henning, T.; Mancini, L.; Sarkis, P.; Bakos, G.Á.; Hartman, J.D.; Bayliss, D.; Bento, J.; Brahm Scott, Rafael; Jordán Colzani, Andrés Cristóbal; Rabus, Markus; Bhatti, W.; Ciceri S.; Csubry Z.; de Val-Borro, M.; Espinoza, N.; Suc, V.
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    HATS-54b-HATS-58Ab : Five New Transiting Hot Jupiters Including One with a Possible Temperate Companion
    (2019) Espinoza Pérez, Néstor; Hartman, J.D.; Bakos, G.A.; Henning, T.; Bayliss, D.; Bento, J.; Bhatti, W.; Brahm Scott, Rafael; Csubry, Z.; Suc, V.; Jordán Colzani, Andrés Cristóbal; Mancin, L.; Tan, G.; Penev, K.; Rabus, Markus; Sarkis, P.; de Val-Borro, M.; Durkan, S.; Lazar, J.; Papp, I.; Sari, P.
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    HATS-59b,c : A Transiting Hot Jupiter and a Cold Massive Giant Planet around a Sunlike Star
    (2018) Sarkis, P.; Henning, T.; Hartman, J.D.; Bakos, G.A.; Brahm Scott, Rafael; Jordán Colzani, Andrés Cristóbal; Bayliss, D.; Mancini, L.; Espinoza Pérez, Néstor; Rabus, Markus; Csubry, Z.
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    HATS-70b : A 13 MJ Brown Dwarf Transiting an A Star
    (2019) Zhou, G.; Bakos, G.A.; Bayliss, D.; Bento, J.; Bhatti, W.; Brahm Scott, Rafael; Csubry, Z.; Espinoza Pérez, Néstor; Hartman, J.D.; Henning, T.; Jordán Colzani, Andrés Cristóbal; Mancini, L.; Penev, K.; Rabus, Markus; Sarkis, P.; Suc, V.; de Val-Borro, M.; Rodriguez, J.E.; Osip, D.; Kedziora-Chudczer, L.; Bailey, J.; Tinney, C.G.; Durkan, S.; Lázár, J.; Papp, I.; Sári, P.
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    HATS-71b : A Giant Planet Transiting an M3 Dwarf Star in TESS Sector 1
    (2020) Bakos, G. A.; Bayliss, D.; Bento, J.; Bhatti, W.; Brahm Scott, Rafael; Csubry, Z.; Espinoza, N.; Hartman, J. D.; Jordán Colzani, Andrés Cristóbal; Rabus, Markus; Henning, T.; Mancini, L.; Penev, K.; Sarkis, P.; Suc, V.; de Val-Borro, M.; Zhou, G.; Butler, R. P.; Crane, J.; Durkan, S.; Shectman, S.; Kim, J.; Lazar, J.; Papp, I.; Sari, P.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J. N.; Jenkins, J.; Chacon, A. D.; Furesz, G.; Goeke, B.; Li, J.; Quinn, S.; Quintana, E. V.; Tenenbaum, P.; Teske, J.; Vezie, M.; Yu, L.; Stockdale, C.; Evans, P.; Relles, H. M.
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    HD 1397b : A Transiting Warm Giant Planet Orbiting A V = 7.8 mag Subgiant Star Discovered by TESS
    (2019) Brahm Scott, Rafael; Espinoza Pérez, Néstor; Jordán Colzani, Andrés Cristóbal; Henning, T.; Sarkis, P.; Jones Fernández, Matías Ignacio; Diaz, M.R.; Jenkins, J.S.; Vanzi, Leonardo; Zapata, Abner; Petrovich Balbontín, Cristóbal; Kossakowski, D.; Rabus, Markus; Rojas, F.; Torres, P.
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    K2-232 b : a transiting warm Saturn on an eccentric P = 11.2  d orbit around a V = 9.9 star.
    (2018) Brahm Scott, Rafael; Lachaume, Regis; Jordán Colzani, Andrés Cristóbal; Rojas Aracena, Felipe Alberto.; Rabus, Markus; Drass, Holger; Espinoza, N.; Sarkis, P.; Díaz, M.R.; Soto, M.G.; Jenkins, J.S.
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    Physical properties and transmission spectrum of the WASP-74 planetary system from multiband photometry
    (2019) Mancini, L.; Southworth, J.; Molliere, P.; Tregloan-Reed, J.; Juvan, I. G.; Chen, G.; Sarkis, P.; Bruni, I.; D’Ago, Giuseppe; Rabus, Markus; Ciceri, S.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M.; Dominik, M.; Evans, D. F.; Jaimes, R. F.; Fossati, L.; Henning, T.; Hinse, T. C.; Hundertmark, M.; Jorgensen, U. G.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Longa, P.; Peixinho, N.; Popovas, A.; Rahvar, S.; Skottfelt, J.; Snodgrass, C.; Tronsgaard, R.; Wang, Y.; Wertz, O.
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    TOI-150b and TOI-163b : two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ
    (2019) Kossakowski, D.; Espinoza, N.; Brahm Scott, Rafael; Jordán Colzani, Andrés Cristóbal; Henning, T.; Rojas, F.; Kurster, M.; Sarkis, P.; Schlecker, M.; Pozuelos, F. J.; Barkaoui, K.; Jehin, E.; Gillon, M.; Matthews, E.; Horch, E. P.; Ciardi, D. R.; Rossfield, I. J. M.; Gonzales, E.; Howell, S. B.; Matson, R.; Schlieder, J.; Jenkins, J.; Ricker, G.; Seager, S.; Winn, J. N.; Li, J.; Rose, M. E.; Smith, J. C.; Dynes, S.; Morgan, E.; Villaseñor, J. N.; Charbonneau, D.; Jaffe, T.; Yu, L.; Bakos, G.; Bhatti, W.; Bouchy, F.; Collins, K. A.; Collins, K. I.; Csubry, Z.; Evans, P.; Jensen, E. L. N.; Lovis, C.; Marmier, M.; Nielsen, L. D.; Osip, D.; Pepe, F.; Relles, H. M.; Segransan, D.; Shporer, A.; Stockdale, C.; Suc, V.; Turner, O.; Udry, S.
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    TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
    (2019) Lendl, M.; Bouchy, F.; Gill, S.; Nielsen, L. D.; Turner, O.; Stassun, K.; Acton, J. S.; Anderson, D. R.; Armstrong, D. J.; Bayliss, D.; Belardi, C.; Bryant, E. M.; Burleigh, M. R.; Chaushev, A.; Casewell, S. L.; Cooke, B. F.; Eigmüller, P.; Gillen, E.; Goad, M. R.; Gunther, M. N.; Hagelberg, J.; Jenkins, J. S.; Louden, T.; Marmier, M.; McCormac, J.; Moyano, M.; Pollacco, D.; Raynard, L.; Tilbrook, R. H.; Udry, S.; Vines, J. I.; West, R. G.; Wheatley, P. J.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J.; Jenkins, J. M.; Addison, B.; Briceño, C.; Brahm, R.; Caldwell, D. A.; Doty, J.; Espinoza, N.; Goeke, B.; Henning, T.; Jordán, A.; Krishnamurthy, A.; Law, N.; Morris, R.; Okumura, J.; Mann, A. W.; Rodriguez, J. E.; Sarkis, P.; Schlieder, J.; Twicken, J. D.; Villanueva, S.; Wittenmyer, R. A.; Wright, D. J.; Ziegle, C.
    We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of $0.18_{-0.10}^{+0.39}$ R⊙ and a mass of 0.23 ± 0.01 M⊙. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.
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    TOI-481 b and TOI-892 b : Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite
    (2020) Brahm, R.; Nielsen, L. D.; Wittenmyer, R. A.; Wang, S. H.; Rodríguez, J. E.; Espinoza, N.; Jones Fernández, Matías Ignacio; Rojas Thomas, Felipe Eduardo; Vanzi, Leonardo; Zapata, Abner; Jordán Colzani, Andrés Cristóbal; Henning, T.; Hobson, M.; Kossakowski, D.; Sarkis, P.; Schlecker, M.; Trifonov, T.; Shahaf, S.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J. N.; Jenkins, J. M.; Addison, B. C.; Bakos, G. A.; Bhatti, W.; Bayliss, D.; Berlind, P.; Bieryla, A.; Bouchy, F.; Bowler, B. P.; Briceno, C.; Brown, T. M.; Bryant, E. M.; Caldwell, D. A.; Charbonneau, D.; Collins, K. A.; Davis, A. B.; Esquerdo, G. A.; Fulton, B. J.; Guerrero, N. M.; Henze, C. E.; Hogan, A.; Horner, J; Huang, C. X.; Irwin, J.; Kane, S. R.; Kielkopf, J.; Mann, A. W.
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    TOI-677b : A Warm Jupiter (P=11.2 days) on an Eccentric Orbit Transiting a Late F-type Star
    (2020) Jordán Colzani, Andrés Cristóbal; Brahm Scott, Rafael; Espinoza, N.; Henning, T.; Jones Fernández, Matías Ignacio; Kossakowski, D.; Sarkis, P.; Trifonov, T.; Rojas, F.; Torres, P.; Drass, Holger; Nandakumar, S.; Barbieri, M.; Davis, A.; Wang, S. H.; Bayliss, D.; Bouma, L.; Dragomir, D.; Eastman, J. D.; Daylan, T.; Guerrero, N.; Barclay, T.; Ting, E. B.; Henze, C. E.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Winn, J.; Jenkins, J. M.; Wittenmyer, R. A.; Bowler, B. P.; Crossfield, I.; Horner, J.; Kane, S. R.; Kielkopf, J. F.; Morton, T. D.; Plavchan, P.; Tinney, C. G.; Addison, B.; Mengel, M. W.; Okumura, J.; Shahaf, S.; Mazeh, T.; Rabus, Markus; Shporer, A.; Ziegler, C.; Mann, A. W.; Hart, R.
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    Two long-period transiting exoplanets on eccentric orbits: NGTS-20 b (TOI-5152 b) and TOI-5153 b
    (2022) Ulmer-Moll, S.; Lendl, M.; Gill, S.; Villanueva, S.; Hobson, M. J.; Bouchy, F.; Brahm, R.; Dragomir, D.; Grieves, N.; Mordasini, C.; Anderson, D. R.; Acton, J. S.; Bayliss, D.; Bieryla, A.; Burleigh, M. R.; Casewell, S. L.; Chaverot, G.; Eigmueller, P.; Feliz, D.; Gaudi, B. S.; Gillen, E.; Goad, M. R.; Gupta, A. F.; Gunther, M. N.; Henderson, B. A.; Henning, T.; Jenkins, J. S.; Jones, M.; Jordan, A.; Kendall, A.; Latham, D. W.; Mireles, I; Moyano, M.; Nadol, J.; Osborn, H. P.; Pepper, J.; Pinto, M. T.; Psaridi, A.; Queloz, D.; Quinn, S.; Rojas, F.; Sarkis, P.; Schlecker, M.; Tilbrook, R. H.; Torres, P.; Trifonov, T.; Udry, S.; Vines, J., I; West, R.; Wheatley, P.; Yao, X.; Zhao, Y.; Zhou, G.
    Context. Long-period transiting planets provide the opportunity to better understand the formation and evolution of planetary systems. Their atmospheric properties remain largely unaltered by tidal or radiative effects of the host star, and their orbital arrangement reflects a different and less extreme migrational history compared to close-in objects. The sample of long-period exoplanets with well-determined masses and radii is still limited, but a growing number of long-period objects reveal themselves in the Transiting Exoplanet Survey Satellite (TESS) data.