Zobrazeno 1 - 10
of 468
pro vyhledávání: '"Howard Isaacson"'
Autor:
Emma M. Louden, Songhu Wang, Joshua N. Winn, Erik A. Petigura, Howard Isaacson, Luke Handley, Samuel W. Yee, Corey Beard, Joseph M. Akana Murphy, Gregory Laughlin
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 1, p L2 (2024)
The distribution of stellar obliquities provides critical insight into the formation and evolution pathways of exoplanets. In the past decade, it was found that hot stars hosting hot Jupiters are more likely to have high obliquities than cool stars,
Externí odkaz:
https://doaj.org/article/51ef0a92a65c434f959ac501a8d37b8e
Autor:
Schuyler D. Van Dyk, Sundar Srinivasan, Jennifer E. Andrews, Monika Soraisam, Tamás Szalai, Steve B. Howell, Howard Isaacson, Thomas Matheson, Erik Petigura, Peter Scicluna, Andrew W. Stephens, Judah Van Zandt, WeiKang Zheng, Sang-Hyun Chun, Alexei V. Fillippenko
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 27 (2024)
We follow our first paper with an analysis of the ensemble of the extensive preexplosion ground- and space-based infrared observations of the red supergiant (RSG) progenitor candidate for the nearby core-collapse supernova SN 2023ixf in Messier 101,
Externí odkaz:
https://doaj.org/article/df5de7b31d0a4c1cba8c04b95c7c70ee
Autor:
Samuel K. Grunblatt, Nicholas Saunders, Daniel Huber, Daniel Thorngren, Shreyas Vissapragada, Stephanie Yoshida, Kevin C. Schlaufman, Steven Giacalone, Mason Macdougall, Ashley Chontos, Emma Turtelboom, Corey Beard, Joseph M. Akana Murphy, Malena Rice, Howard Isaacson, Ruth Angus, Andrew W. Howard
Publikováno v:
The Astronomical Journal, Vol 168, Iss 1, p 1 (2024)
Hot Neptunes, gaseous planets smaller than Saturn (∼3–8 R _⊕ ) with orbital periods less than 10 days, are rare. Models predict this is due to high-energy stellar irradiation stripping planetary atmospheres over time, often leaving behind only
Externí odkaz:
https://doaj.org/article/60a3ed11600f46b49d2be5cb04e96478
Autor:
Sarah Lange, Joseph M. Akana Murphy, Natalie M. Batalha, Ian J. M. Crossfield, Courtney D. Dressing, Benjamin Fulton, Andrew W. Howard, Daniel Huber, Howard Isaacson, Stephen R. Kane, Erik A. Petigura, Paul Robertson, Lauren M. Weiss, Aida Behmard, Corey Beard, Sarah Blunt, Casey L. Brinkman, Ashley Chontos, Fei Dai, Paul A. Dalba, Tara Fetherolf, Steven Giacalone, Michelle L. Hill, Rae Holcomb, Jack Lubin, Mason G. MacDougall, Andrew W. Mayo, Teo Močnik, Daria Pidhorodetska, Alex S. Polanski, Malena Rice, Lee J. Rosenthal, Ryan A. Rubenzahl, Nicholas Scarsdale, Emma V. Turtelboom, Judah Van Zandt, David R. Ciardi, Andrew W. Boyle
Publikováno v:
The Astronomical Journal, Vol 167, Iss 6, p 282 (2024)
We confirm a massive sub-Neptune-sized planet on a P = 22.8 days orbit around the star TOI-1824 ( T _eff = 5200 K, V = 9.7 mag). TESS first identified TOI-1824 b (formerly TOI-1824.01) as an object of interest in 2020 April after two transits in Sect
Externí odkaz:
https://doaj.org/article/590292a8b05a4988a5c15995b9c45265
Autor:
Alex S. Polanski, Jack Lubin, Corey Beard, Joseph M. Akana Murphy, Ryan Rubenzahl, Michelle L. Hill, Ian J. M. Crossfield, Ashley Chontos, Paul Robertson, Howard Isaacson, Stephen R. Kane, David R. Ciardi, Natalie M. Batalha, Courtney Dressing, Benjamin Fulton, Andrew W. Howard, Daniel Huber, Erik A. Petigura, Lauren M. Weiss, Isabel Angelo, Aida Behmard, Sarah Blunt, Casey L. Brinkman, Fei Dai, Paul A. Dalba, Tara Fetherolf, Steven Giacalone, Lea A. Hirsch, Rae Holcomb, Molly R. Kosiarek, Andrew W. Mayo, Mason G. MacDougall, Teo Močnik, Daria Pidhorodetska, Malena Rice, Lee J. Rosenthal, Nicholas Scarsdale, Emma V. Turtelboom, Dakotah Tyler, Judah Van Zandt, Samuel W. Yee, David R. Coria, Shannon D. Dulz, Joel D. Hartman, Aaron Householder, Sarah Lange, Andrew Langford, Emma M. Louden, Jared C. Siegel, Emily A. Gilbert, Erica J. Gonzales, Joshua E. Schlieder, Andrew W. Boyle, Jessie L. Christiansen, Catherine A. Clark, Rachel B. Fernandes, Michael B. Lund, Arjun B. Savel, Holden Gill, Charles Beichman, Rachel Matson, Elisabeth C. Matthews, E. Furlan, Steve B. Howell, Nicholas J. Scott, Mark E. Everett, John H. Livingston, Irina O. Ershova, Dmitry V. Cheryasov, Boris Safonov, Jorge Lillo-Box, David Barrado, María Morales-Calderón
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 2, p 32 (2024)
The Transiting Exoplanet Survey Satellite (TESS) has discovered hundreds of new worlds, with TESS planet candidates now outnumbering the total number of confirmed planets from Kepler. Owing to differences in survey design, TESS continues to provide p
Externí odkaz:
https://doaj.org/article/40b55a29985c45e983e1aeec4c8c7994
Autor:
Stephen R. Kane, Tara Fetherolf, Zhexing Li, Alex S. Polanski, Andrew W. Howard, Howard Isaacson, Teo Močnik, Sadie G. Welter
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 239 (2024)
The discovery of planetary systems beyond the solar system has revealed a diversity of architectures, most of which differ significantly from our system. The initial detection of an exoplanet is often followed by subsequent discoveries within the sam
Externí odkaz:
https://doaj.org/article/8d259cc89654406b86d1abfdea5c4ff0
Autor:
Anmol Desai, Emma V. Turtelboom, Caleb K. Harada, Courtney D. Dressing, David R. Rice, Joseph M. Akana Murphy, Casey L. Brinkman, Ashley Chontos, Ian J. M. Crossfield, Fei Dai, Michelle L. Hill, Tara Fetherolf, Steven Giacalone, Andrew W. Howard, Daniel Huber, Howard Isaacson, Stephen R. Kane, Jack Lubin, Mason G. MacDougall, Andrew W. Mayo, Teo Močnik, Alex S. Polanski, Malena Rice, Paul Robertson, Ryan A. Rubenzahl, Judah Van Zandt, Lauren M. Weiss, Allyson Bieryla, Lars A. Buchhave, Jon M. Jenkins, Veselin B. Kostov, Alan M. Levine, Jorge Lillo-Box, M. Paegert, Markus Rabus, S. Seager, Keivan G. Stassun, Eric B. Ting, David Watanabe, Joshua N. Winn
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 194 (2024)
We present and confirm TOI-1751 b, a transiting sub-Neptune orbiting a slightly evolved, solar-type, metal-poor star ( T _eff = 5996 ± 110 K, $\mathrm{log}(g)=4.2\pm 0.1$ , V = 9.3 mag, [Fe/H] = −0.40 ± 0.06 dex) every 37.47 days. We use TESS pho
Externí odkaz:
https://doaj.org/article/273abab23c864d7f81d362c4e0df748c
Autor:
Daniel O’Conner Peluso, Paul A. Dalba, Duncan Wright, Thomas M. Esposito, Lauren A. Sgro, Ian C. Weaver, Franck Marchis, Diana Dragomir, Steven Villanueva Jr., Benjamin Fulton, Howard Isaacson, Arvind F. Gupta, Thomas Lee Jacobs, Daryll M. LaCourse, Robert Gagliano, Martti H. Kristiansen, Mark Omohundro, Hans M. Schwengeler, Ivan A. Terentev, Andrew Vanderburg, Ananya Balakrishnan, Divya Bhamidipati, Marco Hovland, Serina Jain, Nathan Jay, Hanna Johnson, Aditya Kapur, Jonah Morgan, Josephine Oesterer, Richard Purev, Dean Ramos, Christopher Seo, Vibha Sriramkumar, Naina Srivastava, Astha Verma, Olivia Woo, Steven Adkinson, Keiichi Fukui, Patrice Girard, Tateki Goto, Bruno Guillet, Des Janke, Andre Katterfeld, Rachel Knight, David Koster, Ryuichi Kukita, Eric Lawson, Liouba Leroux, Niniane Leroux, Chelsey Logan, Margaret A. Loose, Nicola Meneghelli, Eric Oulevey, Bruce Parker, Stephen Price, Michael Primm, Justus Randolph, Robert Savonnet, Masao Shimizu, Petri Tikkanen, Stefan Will, Neil Yoblonsky, Wai-Chun Yue
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 170 (2024)
We report the discovery and confirmation of the Transiting Exoplanet Survey Satellite (TESS) single-transit, warm and dense sub-Saturn, TIC 139270665 b. This planet is unusually dense for its size: with a bulk density of 2.13 g cm ^−3 (0.645 R _J ,
Externí odkaz:
https://doaj.org/article/ee2d77b11fa64e989ede4afd07cf9378
Autor:
C. Alexander Thomas, Lauren M. Weiss, Howard Isaacson, Hilke E. Schlichting, Corey Beard, Casey L. Brinkman, Ashley Chontos, Paul Dalba, Fei Dai, Steven Giacalone, Jack Lubin, Judah Van Zandt, Malena Rice
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 160 (2024)
In order to understand the relationship between planet multiplicity, mass, and composition, we present newly measured masses of five planets in two planetary systems: Kepler-323 and Kepler-104. We used the HIRES instrument at the W.M. Keck Observator
Externí odkaz:
https://doaj.org/article/c2d9f6f9ea524c1b8e78924b913a3310
Autor:
Ryan A. Rubenzahl, Fei Dai, Andrew W. Howard, Jack J. Lissauer, Judah Van Zandt, Corey Beard, Steven Giacalone, Joseph M. Akana Murphy, Ashley Chontos, Jack Lubin, Casey L. Brinkman, Dakotah Tyler, Mason G. MacDougall, Malena Rice, Paul A. Dalba, Andrew W. Mayo, Lauren M. Weiss, Alex S. Polanski, Sarah Blunt, Samuel W. Yee, Michelle L. Hill, Isabel Angelo, Emma V. Turtelboom, Rae Holcomb, Aida Behmard, Daria Pidhorodetska, Natalie M. Batalha, Ian J. M. Crossfield, Courtney Dressing, Benjamin Fulton, Daniel Huber, Howard Isaacson, Stephen R. Kane, Erik A. Petigura, Paul Robertson, Nicholas Scarsdale, Teo Mocnik, Tara Fetherolf, Luca Malavolta, Annelies Mortier, Aldo Fiorenzano, Marco Pedani
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 153 (2024)
The extreme environments of ultra-short-period planets (USPs) make excellent laboratories to study how exoplanets obtain, lose, retain, and/or regain gaseous atmospheres. We present the confirmation and characterization of the USP TOI-1347 b, a 1.8
Externí odkaz:
https://doaj.org/article/4a8bcafa3c5044ebb7305d686c6b0925