KELT-25 B and KELT-26 B: a Hot Jupiter and a Substellar Companion Transiting Young a Stars Observed by TESS
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Qatar Exoplanet Survey: Qatar-6B--A Grazing Transiting Hot Jupiter
DRAFT VERSION JULY 2, 2018 Typeset using LATEX preprint2 style in AASTeX61 QATAR EXOPLANET SURVEY: QATAR-6B – A GRAZING TRANSITING HOT JUPITER KHALID ALSUBAI,1 ZLATAN I. TSVETANOV,1 DAVID W. LATHAM,2 ALLYSON BIERYLA,2 GILBERT A. ESQUERDO,2 DIMITRIS MISLIS,1 STYLIANOS PYRZAS,1 EMMA FOXELL,3, 4 JAMES MCCORMAC,3, 4 CHRISTOPH BARANEC,5 NICOLAS P. E. VILCHEZ,1 RICHARD WEST,3, 4 ALI ESAMDIN,6 ZHENWEI DANG,6 HANI M. DALEE,1 AMANI A. AL-RAJIHI,7 AND ABEER KH.AL-HARBI8 1Qatar Environment and Energy Research Institute (QEERI), HBKU, Qatar Foundation, PO Box 5825, Doha, Qatar 2Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA 3Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK 4Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK 5Institute for Astronomy, University of Hawai‘i at Manoa,¯ Hilo, HI 96720-2700, USA 6Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi, Xinjiang 830011, China 7Qatar Secondary Independent High School, Doha, Qatar 8Al-Kawthar Secondary Independent High School, Doha, Qatar (Received Oct 6, 2017; Revised Dec 4, 2017; Accepted Dec 5, 2017) Submitted to AJ ABSTRACT We report the discovery of Qatar-6b, a new transiting planet identified by the Qatar Exoplanet Survey (QES). The planet orbits a relatively bright (V=11.44), early-K main-sequence star at an orbital period of P ∼ 3:506 days. An SED fit to available multi-band photometry, ranging from the near-UV to the mid-IR, yields a distance of d = 101 ± 6 pc to the system. -
Arxiv:2003.04650V1 [Astro-Ph.EP] 10 Mar 2020 Sphere (Arcangeli Et Al
Astronomy & Astrophysics manuscript no. main c ESO 2020 March 11, 2020 Detection of Fe i and Fe ii in the atmosphere of MASCARA-2b using a cross-correlation method M. Stangret1,2, N. Casasayas-Barris1,2, E. Pallé1,2, F. Yan3, A. Sánchez-López4, M. López-Puertas4 1 Instituto de Astrofísica de Canarias, Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain e-mail: [email protected] 2 Departamento de Astrofísica, Universidad de La Laguna, 38200 San Cristobal de La Laguna, Spain 3 Institut für Astrophysik, Georg-August-Universität, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany 4 Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain Received 21 January 2020; accepted 27 February 2020 ABSTRACT Ultra-hot Jupiters are gas giants planets whose dayside temperature, due to the strong irradiation received from the host star, is greater than 2200 K. These kind of objects are perfect laboratories to study chemistry of exoplanetary upper atmospheres via trans- mission spectroscopy. Exo-atmospheric absorption features are buried in the noise of the in-transit residual spectra. However we can retrieve the information of hundreds of atmospheric absorption lines by performing a cross-correlation with an atmospheric transmission model, which allows us to greatly increase the exo-atmospheric signal. At the high-spectral resolution of our data, the Rossiter-McLaughlin effect and centre-to-limb variation have a strong contribution. Here, we present the first detection of Fe i and the confirmation of absorption features of Fe ii in the atmosphere of the ultra-hot Jupiter MASCARA-2b/KELT-20b, by using three transit observations with HARPS-N. -
'Hot Jupiter' Detected by the Qatar Exoplanet Survey 18 December 2017, by Tomasz Nowakowski
New grazing transiting 'hot Jupiter' detected by the Qatar Exoplanet Survey 18 December 2017, by Tomasz Nowakowski Now, a team of astronomers, led by Khalid Alsubai of the Qatar Environment and Energy Research Institute (QEERI) in Doha, Qatar, reports the finding of a new addition to the short list of planets in a grazing transit configuration. They discovered Qatar-6b as part of the QES survey, which utilizes the New Mexico Skies Observatory located at Mayhill, New Mexico. "In this paper, we present the discovery of Qatar-6b, a newly found hot Jupiter on a grazing transit," the researchers wrote in the paper. According to the study, Qatar-6b has a radius about 6 percent larger than Jupiter and a mass of approximately 0.67 Jupiter masses, which indicates a density of 0.68 g/cm3. The exoplanet orbits its The discovery light curve for Qatar-6b phase folded with parent star every 3.5 days at a distance of about the BLS estimated period, as it appears in the QES 0.04 AU from the host. Due to the proximity of this archive. Credit: Alsubai et al., 2017. planet to the star, astronomers estimate that it has an equilibrium temperature of 1,006 K. The parameters suggest that Qatar-6b belongs to (Phys.org)—An international group of astronomers group of planets known as "hot Jupiters." These has found a new grazing transiting "hot Jupiter" exoworlds are similar in characteristics to the solar alien world as part of the Qatar Exoplanet Survey system's biggest planet, with orbital periods of less (QES). -
News from the High Plains
Department of Physics & Astronomy Greetings Alumni & Friends, February 2014 Physics & Astronomy at 7200’ is alive and kicking. The enclosed plot shows how News from the our student population has seen significant growth over the past decade to a present total of 115, including 38 graduate students (see also the Sputnik-era spike!). This High Plains growth has gone hand-in-hand with the University’s decision to recommit to physics. Our astronomy program now has expertise in star formation, planetary formation, galaxies, quasars, instrumentation, and cosmology. UW physicists work on a wide array of areas in condensed matter physics and biophysics. Much of the focus has been on developing and understanding nanostructures geared toward efficient energy transportation and conversion (e.g., solar cells). Our physics faculty have also been working with the departments of Chemistry, Chemical & Petroleum Engineering, and Mechanical Engineering to develop a cross-college, interdisciplinary Materials Science and Engineering program. This program allows students to take courses from multiple departments, carry out collaborative research, and ultimately pursue a terminal degree in their home departments with a concentration in Materials Science. In terms of infrastructure, our program is almost unrecognizable from where it stood just a few years ago. We now have a first-class nano-fabrication and characterization lab that includes key pieces of equipment such as an electron-beam evaporator, X-ray diffractometer, reactive ion etcher, chemical vapor deposition systems, mask aligner, etc. Our newest faculty member, TeYu Chien, is building up a lab centered around Spring Graduates a state-of-the-art scanning tunneling microscope. Our observatory WIRO is also continuing to see upgrades. -
AST413 Gezegen Sistemleri Ve Oluşumu Ders 4 : Geçiş Yöntemi – I Yöntemin Temelleri Geçiş Yöntemi HD 209458 B
AST413 Gezegen Sistemleri ve Oluşumu Ders 4 : Geçiş Yöntemi – I Yöntemin Temelleri Geçiş Yöntemi HD 209458 b Charbonneau vd. 2000 2000 yılında David Charbonneau dikine hız yöntemiyle keşfedilmiş HD 209458 b’nin bir geçişini gözledi. Bu ilk gezegen geçiş gözlemidir. Charbonneau, cismin yörünge parametrelerini dikine hızdan bildiği için teleskobunu yapıyorsa geçişini gözlemek üzere ne zaman cisme doğrultması gerektiğini biliyordu. Ancak, gezegenin gözlemicyle arasından geçiş yapmak gibi bir zorunluluğu da yoktur. Venüs Geçişi Venüs örneğinde gördüğümüz gibi gezegen yıldızın önünden geçerken, yıldızın ışığı gezegenin (varsa) atmosferinin içinden geçerek bize ulaşır. Bu da -ideal durumda- gezegenin atmosferini çalışmamıza olanak sağlayabilir. Sıcak Jüpiterler Gerçekten Var! 51 Peg b keşfinden sonra sıcak Jüpiterlerin (yıldızına 1/20 AB'den daha yakın dev gaz gezegenler) yıldızlarına bu kadar yakın oluşup oluşamayacakları, sistemin başka bir yerinden göç etmiş olabilme olasılıkları hatta var olup olmadıkları uzun süre tartışıldı. Ancak bu cisimlerin yarıçaplarının (R p) büyük olması ve yıldızlarına yakınlıkları (a), daha büyük geçiş ışık değişim genliği ve daha kısa geçiş dönemi nedeniyle onların geçiş yöntemiyle keşfedillme olasılıklarını da arttırdığından, bu yöntemle diğer gezegenlere göre daha kolay keşfedilmelerini de sağladı. Dikine hız tekniğiyle keşfedilen HD 209458b, geçiş de gösteriyordu ve dikine hız ölçümleriyle, geçiş gözlemleri birlikte değerlendirildiğinde bu sıcak Jüpiter türü gezegenin gerçekten var olduğu kanıtlanmış oldu! Charbonneau vd. 2000 Mazeh vd. 2000 Geçiş Olasılığı Öncelikle gezegenin yörüngesinin çembersel (e = 0) olduğunu varsayalım. Bu durumda gezegenin gözlemcinin bakış yönü doğrultusunda yıldızla arasından (sıyırarak da olsa) geçmesi için yörüngenin yarı-büyük eksen uzunluğu a’nın cos i çarpanı kadar kısaltılmış kesitinin (a cos i) yıldızın yarıçapı ile gezegen yarıçapı toplamından (R* + Rg) küçük olması gerekir (a cos i ≤ R* + Rg). -
Exoplanetary Atmospheres: Key Insights, Challenges, and Prospects
AA57CH15_Madhusudhan ARjats.cls August 7, 2019 14:11 Annual Review of Astronomy and Astrophysics Exoplanetary Atmospheres: Key Insights, Challenges, and Prospects Nikku Madhusudhan Institute of Astronomy, University of Cambridge, Cambridge CB3 0HA, United Kingdom; email: [email protected] Annu. Rev. Astron. Astrophys. 2019. 57:617–63 Keywords The Annual Review of Astronomy and Astrophysics is extrasolar planets, spectroscopy, planet formation, habitability, atmospheric online at astro.annualreviews.org composition https://doi.org/10.1146/annurev-astro-081817- 051846 Abstract Copyright © 2019 by Annual Reviews. Exoplanetary science is on the verge of an unprecedented revolution. The All rights reserved thousands of exoplanets discovered over the past decade have most recently been supplemented by discoveries of potentially habitable planets around nearby low-mass stars. Currently, the field is rapidly progressing toward de- tailed spectroscopic observations to characterize the atmospheres of these planets. Various surveys from space and the ground are expected to detect numerous more exoplanets orbiting nearby stars that make the planets con- ducive for atmospheric characterization. The current state of this frontier of exoplanetary atmospheres may be summarized as follows. We have entered the era of comparative exoplanetology thanks to high-fidelity atmospheric observations now available for tens of exoplanets. Access provided by Florida International University on 01/17/21. For personal use only. Annu. Rev. Astron. Astrophys. 2019.57:617-663. Downloaded from www.annualreviews.org Recent studies reveal a rich diversity of chemical compositions and atmospheric processes hitherto unseen in the Solar System. Elemental abundances of exoplanetary atmospheres place impor- tant constraints on exoplanetary formation and migration histories. -
KELT-23Ab: a Hot Jupiter Transiting a Near-Solar Twin Close to the TESS and JWST Continuous Viewing Zones
The Astronomical Journal, 158:78 (14pp), 2019 August https://doi.org/10.3847/1538-3881/ab24c7 © 2019. The American Astronomical Society. All rights reserved. KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones Daniel Johns1 , Phillip A. Reed1 , Joseph E. Rodriguez2 , Joshua Pepper3 , Keivan G. Stassun4,5 , Kaloyan Penev6 , B. Scott Gaudi7 , Jonathan Labadie-Bartz8,9 , Benjamin J. Fulton10 , Samuel N. Quinn2 , Jason D. Eastman2 , David R. Ciardi10, Lea Hirsch11 , Daniel J. Stevens12,13 , Catherine P. Stevens14, Thomas E. Oberst14, David H. Cohen15, Eric L. N. Jensen15 , Paul Benni16, Steven Villanueva, Jr.7 , Gabriel Murawski17, Allyson Bieryla2 , David W. Latham2 , Siegfried Vanaverbeke18, Franky Dubois18, Steve Rau18, Ludwig Logie18, Ryan F. Rauenzahn1, Robert A. Wittenmyer19 , Roberto Zambelli20, Daniel Bayliss21,22 , Thomas G. Beatty13,23 , Karen A. Collins2 , Knicole D. Colón24 , Ivan A. Curtis25, Phil Evans26, Joao Gregorio27, David James28 , D. L. Depoy29,30, Marshall C. Johnson7 , Michael D. Joner31, David H. Kasper32, Somayeh Khakpash3 , John F. Kielkopf33, Rudolf B. Kuhn34,35, Michael B. Lund4,10 , Mark Manner36 , Jennifer L. Marshall29,30 , Kim K. McLeod37 , Matthew T. Penny7 , Howard Relles2, Robert J. Siverd4 , Denise C. Stephens31, Chris Stockdale38 , Thiam-Guan Tan39 , Mark Trueblood40, Pat Trueblood40, and Xinyu Yao3 1 Department of Physical Sciences, Kutztown University, Kutztown, PA 19530, USA 2 Center for Astrophysics | Harvard & Smithsonian, 60 Garden Steet, Cambridge, -
Keith Horne: Refereed Publications Papers Submitted: 425. “A
Keith Horne: Refereed Publications Papers Submitted: 427. “The Lick AGN Monitoring Project 2016: Velocity-Resolved Hβ Lags in Luminous Seyfert Galaxies.” V.U, A.J.Barth, H.A.Vogler, H.Guo, T.Treu, et al. (202?). ApJ, submitted (01 Oct 2021). 426. “Multi-wavelength Optical and NIR Variability Analysis of the Blazar PKS 0027-426.” E.Guise, S.F.H¨onig, T.Almeyda, K.Horne M.Kishimoto, et al. (202?). (arXiv:2108.13386) 425. “A second planet transiting LTT 1445A and a determination of the masses of both worlds.” J.G.Winters, et al. (202?) ApJ, submitted (30 Jul 2021). (arXiv:2107.14737) 424. “A Different-Twin Pair of Sub-Neptunes orbiting TOI-1064 Discovered by TESS, Characterised by CHEOPS and HARPS” T.G.Wilson et al. (202?). ApJ, submitted (12 Jul 2021). 423. “The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc” M.L.Silverstein, et al. (202?). AJ, submitted (24 Jun 2021). 422. “A temperate Earth-sized planet with strongly tidally-heated interior transiting the M8 dwarf LP 791-18.” M.Peterson, B.Benneke, et al. (202?). submitted (09 May 2021). 421. “The Sloan Digital Sky Survey Reverberation Mapping Project: UV-Optical Accretion Disk Measurements with Hubble Space Telescope.” Y.Homayouni, M.R.Sturm, J.R.Trump, K.Horne, C.J.Grier, Y.Shen, et al. (202?). ApJ submitted (06 May 2021). (arXiv:2105.02884) Papers in Press: 420. “Bayesian Analysis of Quasar Lightcurves with a Running Optimal Average: New Time Delay measurements of COSMOGRAIL Gravitationally Lensed Quasars.” F.R.Donnan, K.Horne, J.V.Hernandez Santisteban (202?) MNRAS, in press (28 Sep 2021). -
Studying Exoplanets from Bridgewater State University Maria Patrone
Bridgewater State University Virtual Commons - Bridgewater State University Honors Program Theses and Projects Undergraduate Honors Program 5-2-2018 Finding Alien Worlds: Studying Exoplanets from Bridgewater State University Maria Patrone Follow this and additional works at: http://vc.bridgew.edu/honors_proj Part of the Physics Commons Recommended Citation Patrone, Maria. (2018). Finding Alien Worlds: Studying Exoplanets from Bridgewater State University. In BSU Honors Program Theses and Projects. Item 275. Available at: http://vc.bridgew.edu/honors_proj/275 Copyright © 2018 Maria Patrone This item is available as part of Virtual Commons, the open-access institutional repository of Bridgewater State University, Bridgewater, Massachusetts. Finding Alien Worlds: Studying Exoplanets from Bridgewater State University Maria Patrone Submitted in Partial Completion of the Requirements for Commonwealth Honors in Physics Bridgewater State University May 2, 2018 Dr. Martina Arndt, Thesis Advisor Dr. Thomas Kling, Committee Member Dr. Jeffrey Williams, Committee Member Bridgewater State University Finding Alien Worlds: Studying Exoplanets from Bridgewater State University by Maria Patrone in the Department of Physics May 7, 2018 \Keep Looking Up" Neil Degrasse Tyson Bridgewater State University Abstract Department of Physics by Maria Patrone The search for exoplanets, or planets orbiting other stars in our galaxy, has only been a field of study since the early 1990's and is currently a popular area of research among astrophysicists. With the launch of the Kepler Space telescope in 2009, there are over three thousand confirmed exoplanets, and over four thousand Kepler Objects of Interest (KOI's), which are possible exoplanet candidates. With so much data obtained from Kepler, NASA relies on ground based observatories to follow up and confirm KOI's as exoplanets or false positives. -
AST413 Gezegen Sistemleri Ve Oluşumu Ders 4A : Geçiş Yöntemi - I Geçiş Yöntemi HD 209458 B
AST413 Gezegen Sistemleri ve Oluşumu Ders 4a : Geçiş Yöntemi - I Geçiş Yöntemi HD 209458 b Charbonneau vd. 2000 2000 yılında David Charbonneau dikine hız yöntemiyle keşfedilmiş HD 209458 b’nin bir geçişini gözledi. Bu ilk gezegen geçiş gözlemidir. Charbonneau, cismin yörünge parametrelerini dikine hızdan bildiği için teleskobunu yapıyorsa geçişini gözlemek üzere ne zaman cisme doğrultması gerektiğini biliyordu. Ancak, gezegenin gözlemicyle arasından geçiş yapmak gibi bir zorunluluğu da yoktur. Venüs Geçişi Venüs örneğinde gördüğümüz gibi gezegen yıldızın önünden geçerken, yıldızın ışığı gezegenin (varsa) atmosferinin içinden geçerek bize ulaşır. Bu da -ideal durumda- gezegenin atmosferini çalışmamıza olanak sağlayabilir. Sıcak Jüpiterler Gerçekten Var! 51 Peg b keşfinden sonra sıcak Jüpiterlerin (yıldızına 1/20 AB'den daha yakın dev gaz gezegenler) yıldızlarına bu kadar yakın oluşup oluşamayacakları, sistemin başka bir yerinden göç etmiş olabilme olasılıkları hatta var olup olmadıkları uzun süre tartışıldı. Ancak bu cisimlerin yarıçaplarının (R p) büyük olması ve yıldızlarına yakınlıkları (a), daha büyük geçiş ışık değişim genliği ve daha kısa geçiş dönemi nedeniyle onların geçiş yöntemiyle keşfedillme olasılıklarını da arttırdığından, bu yöntemle diğer gezegenlere göre daha kolay keşfedilmelerini de sağladı. Dikine hız tekniğiyle keşfedilen HD 209458b, geçiş de gösteriyordu ve dikine hız ölçümleriyle, geçiş gözlemleri birlikte değerlendirildiğinde bu sıcak Jüpiter türü gezegenin gerçekten var olduğu kanıtlanmış oldu! Charbonneau vd. 2000 -
Abstracts of Extreme Solar Systems 4 (Reykjavik, Iceland)
Abstracts of Extreme Solar Systems 4 (Reykjavik, Iceland) American Astronomical Society August, 2019 100 — New Discoveries scope (JWST), as well as other large ground-based and space-based telescopes coming online in the next 100.01 — Review of TESS’s First Year Survey and two decades. Future Plans The status of the TESS mission as it completes its first year of survey operations in July 2019 will bere- George Ricker1 viewed. The opportunities enabled by TESS’s unique 1 Kavli Institute, MIT (Cambridge, Massachusetts, United States) lunar-resonant orbit for an extended mission lasting more than a decade will also be presented. Successfully launched in April 2018, NASA’s Tran- siting Exoplanet Survey Satellite (TESS) is well on its way to discovering thousands of exoplanets in orbit 100.02 — The Gemini Planet Imager Exoplanet Sur- around the brightest stars in the sky. During its ini- vey: Giant Planet and Brown Dwarf Demographics tial two-year survey mission, TESS will monitor more from 10-100 AU than 200,000 bright stars in the solar neighborhood at Eric Nielsen1; Robert De Rosa1; Bruce Macintosh1; a two minute cadence for drops in brightness caused Jason Wang2; Jean-Baptiste Ruffio1; Eugene Chiang3; by planetary transits. This first-ever spaceborne all- Mark Marley4; Didier Saumon5; Dmitry Savransky6; sky transit survey is identifying planets ranging in Daniel Fabrycky7; Quinn Konopacky8; Jennifer size from Earth-sized to gas giants, orbiting a wide Patience9; Vanessa Bailey10 variety of host stars, from cool M dwarfs to hot O/B 1 KIPAC, Stanford University (Stanford, California, United States) giants. 2 Jet Propulsion Laboratory, California Institute of Technology TESS stars are typically 30–100 times brighter than (Pasadena, California, United States) those surveyed by the Kepler satellite; thus, TESS 3 Astronomy, California Institute of Technology (Pasadena, Califor- planets are proving far easier to characterize with nia, United States) follow-up observations than those from prior mis- 4 Astronomy, U.C. -
Near-Resonance in a System of Sub-Neptunes from TESS
Near-resonance in a System of Sub-Neptunes from TESS The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Quinn, Samuel N., et al.,"Near-resonance in a System of Sub- Neptunes from TESS." Astronomical Journal 158, 5 (November 2019): no. 177 doi 10.3847/1538-3881/AB3F2B ©2019 Author(s) As Published 10.3847/1538-3881/AB3F2B Publisher American Astronomical Society Version Final published version Citable link https://hdl.handle.net/1721.1/124708 Terms of Use Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The Astronomical Journal, 158:177 (16pp), 2019 November https://doi.org/10.3847/1538-3881/ab3f2b © 2019. The American Astronomical Society. All rights reserved. Near-resonance in a System of Sub-Neptunes from TESS Samuel N. Quinn1 , Juliette C. Becker2 , Joseph E. Rodriguez1 , Sam Hadden1 , Chelsea X. Huang3,45 , Timothy D. Morton4 ,FredC.Adams2 , David Armstrong5,6 ,JasonD.Eastman1 , Jonathan Horner7 ,StephenR.Kane8 , Jack J. Lissauer9, Joseph D. Twicken10 , Andrew Vanderburg11,46 , Rob Wittenmyer7 ,GeorgeR.Ricker3, Roland K. Vanderspek3 , David W. Latham1 , Sara Seager3,12,13,JoshuaN.Winn14 , Jon M. Jenkins9 ,EricAgol15 , Khalid Barkaoui16,17, Charles A. Beichman18, François Bouchy19,L.G.Bouma14 , Artem Burdanov20, Jennifer Campbell47, Roberto Carlino21, Scott M. Cartwright22, David Charbonneau1 , Jessie L. Christiansen18 , David Ciardi18, Karen A. Collins1 , Kevin I. Collins23,DennisM.Conti24,IanJ.M.Crossfield3, Tansu Daylan3,48 , Jason Dittmann3 , John Doty25, Diana Dragomir3,49 , Elsa Ducrot17, Michael Gillon17 , Ana Glidden3,12 , Robert F.