| Texto completo | |
| Autor(es): Mostrar menos - |
Martinez, Romy Rodriguez
[1]
;
Gaudi, B. Scott
[1]
;
Rodriguez, Joseph E.
[2]
;
Zhou, George
[2]
;
Labadie-Bartz, Jonathan
[3]
;
Quinn, Samuel N.
[2]
;
Penev, Kaloyan
[4]
;
Tan, Thiam-Guan
[5]
;
Latham, David W.
[2]
;
Paredes, Leonardo A.
[6]
;
Kielkopf, John F.
[7]
;
Addison, Brett
[8]
;
Wright, Duncan J.
[8]
;
Teske, Johanna
[9]
;
Howell, Steve B.
[10]
;
Ciardi, David
[11]
;
Ziegler, Carl
[12]
;
Stassun, Keivan G.
[13, 14]
;
Johnson, Marshall C.
[15]
;
Eastman, Jason D.
[2]
;
Siverd, Robert J.
[16]
;
Beatty, Thomas G.
[17, 18]
;
Bouma, Luke
[19]
;
Bedding, Timothy
[20]
;
Pepper, Joshua
[21]
;
Winn, Joshua
[19]
;
Lund, Michael B.
[11]
;
Villanueva, Jr., Steven
[22, 23]
;
Stevens, Daniel J.
[24, 25]
;
Jensen, Eric L. N.
[26]
;
Kilby, Coleman
[26]
;
Crane, Jeffrey D.
[27, 9]
;
Tokovinin, Andrei
[28]
;
Everett, Mark E.
[29]
;
Tinney, C. G.
[30]
;
Fausnaugh, Michael
[22, 23]
;
Cohen, David H.
[26]
;
Bayliss, Daniel
[31, 32]
;
Bieryla, Allyson
[2]
;
Cargile, Phillip A.
[2]
;
Collins, Karen A.
[2]
;
Conti, Dennis M.
[33]
;
Colon, Knicole D.
[34]
;
Curtis, Ivan A.
[35]
;
Depoy, D. L.
[36, 37]
;
Evans, Phil
[38]
;
Feliz, Dax L.
[13]
;
Gregorio, Joao
[39, 40]
;
Rothenberg, Jason
[41]
;
James, David J.
[2, 42]
;
Joner, Michael D.
[43]
;
Kuhn, Rudolf B.
[44, 45]
;
Manner, Mark
[46]
;
Khakpash, Somayeh
[21]
;
Marshall, Jennifer L.
[36, 37]
;
McLeod, Kim K.
[47]
;
Penny, Matthew T.
[48]
;
Reed, Phillip A.
[49]
;
Relles, Howard M.
[2]
;
Stephens, Denise C.
[43]
;
Stockdale, Chris
[50]
;
Trueblood, Mark
[51]
;
Trueblood, Pat
[51]
;
Yao, Xinyu
[21]
;
Zambelli, Roberto
[52]
;
Vanderspek, Roland
[22, 23]
;
Seager, Sara
[22, 23, 53, 54]
;
Jenkins, Jon M.
[10]
;
Henry, Todd J.
[6]
;
James, Hodari-Sadiki
[6]
;
Jao, Wei-Chun
[6]
;
Wang, Sharon Xuesong
[9]
;
Butler, Paul
[27]
;
Thompson, Ian
[9]
;
Shectman, Stephen
[9]
;
Wittenmyer, Robert
[8]
;
Bowler, Brendan P.
[55]
;
Horner, Jonathan
[8]
;
Kane, Stephen R.
[56]
;
Mengel, Matthew W.
[8]
;
Morton, Timothy D.
[57]
;
Okumura, Jack
[8]
;
Plavchan, Peter
[58]
;
Zhang, Hui
[59]
;
Scott, Nicholas J.
[10]
;
Matson, Rachel A.
[10]
;
Mann, Andrew W.
[60]
;
Dragomir, Diana
[61]
;
Gunther, Max
[22, 23]
;
Ting, Eric B.
[10]
;
Glidden, Ana
[22, 23]
;
Quintana, V, Elisa
Número total de Autores: 92
|
| Afiliação do(s) autor(es): Mostrar menos - | [1] Ohio State Univ, Dept Astron, 140 West 18th Ave, Columbus, OH 43210 - USA
[2] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 - USA
[3] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Rua Matao 1226, Cidade Univ, BR-05508900 Sao Paulo, SP - Brazil
[4] Univ Texas Dallas, Dept Phys, 800 West Campbell Rd, Richardson, TX 75080 - USA
[5] Perth Exoplanet Survey Telescope, Perth, WA - Australia
[6] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30302 - USA
[7] Univ Louisville, Dept Phys & Astron, Louisville, KY 40292 - USA
[8] Univ Southern Queensland, Ctr Astrophys, West St, Toowoomba, Qld 4350 - Australia
[9] Carnegie Inst Sci, The Observatories, 813 Santa Barbara St, Pasadena, CA 91101 - USA
[10] NASA, Ames Res Ctr, Moffett Field, CA 94035 - USA
[11] CALTECH IPAC NASA Exoplanet Sci Inst, 1200 East Calif Ave, Pasadena, CA 91125 - USA
[12] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4 - Canada
[13] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 - USA
[14] Fisk Univ, Dept Phys, 1000 17th Ave North, Nashville, TN 37208 - USA
[15] Cumbres Observ, 6740 Cortona Dr, Suite 102, Goleta, CA 93117 - USA
[16] Northern Operat Ctr, Gemini Observ, 670 North Aohoku Pl, Hilo, HI 96720 - USA
[17] Univ Arizona, Steward Observ, Tucson, AZ 85721 - USA
[18] Univ Arizona, Dept Astron, Tucson, AZ 85721 - USA
[19] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 - USA
[20] Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006 - Australia
[21] Lehigh Univ, Dept Phys, 16 Mem Dr East, Bethlehem, PA 18015 - USA
[22] MIT, Dept Phys, Cambridge, MA 02139 - USA
[23] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 - USA
[24] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 - USA
[25] Penn State Univ, Ctr Exoplanets & Habitable Worlds, 525 Davey Lab, University Pk, PA 16802 - USA
[26] Swarthmore Coll, Dept Phys & Astron, Swarthmore, PA 19081 - USA
[27] Carnegie Inst Sci, Dept Terr Magnetism, 5241 Broad Branch Rd NW, Washington, DC 20015 - USA
[28] Cerro Tololo Interamer Observ, Casilla 603, La Serena - Chile
[29] Natl Opt Astron Observ, 950 North Cherry Ave, Tucson, AZ 85719 - USA
[30] UNSW Sydney, Sch Phys, Exoplanetary Sci UNSW, Sydney, NSW 2052 - Australia
[31] Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands - England
[32] Univ Warwick, Ctr Exoplanets & Habitabil, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands - England
[33] Amer Assoc Variable Star Observers, 49 Bay State Rd, Cambridge, MA 02138 - USA
[34] V, NASA, Exoplanets & Stellar Astrophys Lab, Goddard Space Flight Ctr, Code 667, Greenbelt, MD 20771 - USA
[35] Ivan Curtis Private Observ, Adelaide, SA - Australia
[36] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 - USA
[37] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 - USA
[38] El Sauce Observ, Rio Hurtado, Coquimbo - Chile
[39] Atalaia Grp, Portalegre - Portugal
[40] CROW Observ, Portalegre - Portugal
[41] Univ Wyoming, Dept Phys & Astron, 1000 East Univ Ave, Dept 3905, Laramie, WY 82071 - USA
[42] Harvard Univ, Black Hole Initiat, 20 Garden St, Cambridge, MA 02138 - USA
[43] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 - USA
[44] South African Astron Observ, POB 9, ZA-7935 Cape Town - South Africa
[45] Southern African Large Telescope, POB 9, ZA-7935 Cape Town - South Africa
[46] Spot Observ, Nashville, TN 37206 - USA
[47] Wellesley Coll, Dept Astron, Wellesley, MA 02481 - USA
[48] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 - USA
[49] Kutztown State Univ, Dept Phys Sci, Kutztown, PA 19530 - USA
[50] Hazelwood Observ, Churchill, Vic - Australia
[51] Winer Observ, POB 797, Sonoita, AZ 85637 - USA
[52] Soc Astron Lunae, Gran Sasso - Italy
[53] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 - USA
[54] MIT, Dept Aeronaut & Astronaut, 77 Massachusetts Ave, Cambridge, MA 02139 - USA
[55] Univ Texas Austin, Dept Astron, Austin, TX 78712 - USA
[56] Univ Calif Riverside, Dept Earth Sci, Riverside, CA 92521 - USA
[57] Univ Florida, Dept Astron, 211 Bryant Space Sci Ctr, Gainesville, FL 32611 - USA
[58] George Mason Univ, 4400 Univ Dr MS 3F3, Fairfax, VA 22030 - USA
[59] Nanjing Univ, Sch Astron & Space Sci, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210046, Jiangsu - Peoples R China
[60] Univ North Carolina Chapel Hill, Dept Phys & Astron, Chapel Hill, NC 27599 - USA
[61] Univ New Mexico, Dept Phys & Astron, 1919 Lomas Blvd NE, Albuquerque, NM 87131 - USA
Número total de Afiliações: 61
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ASTRONOMICAL JOURNAL; v. 160, n. 3 SEP 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
We present the discoveries of KELT-25 b (TIC 65412605, TOI-626.01) and KELT-26 b (TIC 160708862, TOI1337.01), two transiting companions orbiting relatively bright, early A stars. The transit signals were initially detected by the KELT survey and subsequently confirmed by Transiting Exoplanet Survey Satellite (TESS) photometry. KELT-25 b is on a 4.40 day orbit around the V = 9.66 star CD-24 5016 (T-eff = 8280(-180)(+440) K, M-star = 2.18(-0.11)(+0.12) M-circle dot), while KELT-26 b is on a 3.34 day orbit around the V = 9.95 star HD 134004 (T-eff = 8640(-240)(+500) K, M-circle dot = 1.93(-0.16)(+0.14) M-circle dot), which is likely an Am star. We have confirmed the substellar nature of both companions through detailed characterization of each system using ground-based and TESS photometry, radial velocity measurements, Doppler tomography, and high-resolution imaging. For KELT-25, we determine a companion radius of R-P = 1.64(-0.043)(+0.039) R-J and a 3 sigma upper limit on the companion's mass of similar to 64 M-J. For KELT-26 b, we infer a planetary mass and radius of M-P = 1.41(-0.51)(+0.43) M-J and R-P = 1.94(-0.058)(+0.060) R-J. From Doppler tomographic observations, we find KELT-26 b to reside in a highly misaligned orbit. This conclusion is weakly corroborated by a subtle asymmetry in the transit light curve from the TESS data. KELT-25 b appears to be in a well-aligned, prograde orbit, and the system is likely a member of the cluster Theia 449. (AU) | |
| Processo FAPESP: | 17/23731-1 - Análise e Modelagem de uma Grande Amostra de Estrelas Be Galácticas |
| Beneficiário: | Jonathan Michael Labadie-Bartz |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |