Subjects -> ASTRONOMY (Total: 94 journals)
Showing 1 - 46 of 46 Journals sorted alphabetically
Advances in Astronomy     Open Access   (Followers: 51)
Annual Review of Astronomy and Astrophysics     Full-text available via subscription   (Followers: 39)
Annual Review of Earth and Planetary Sciences     Full-text available via subscription   (Followers: 63)
Artificial Satellites     Open Access   (Followers: 23)
Astrobiology     Hybrid Journal   (Followers: 14)
Astronomical & Astrophysical Transactions: The Journal of the Eurasian Astronomical Society     Hybrid Journal   (Followers: 6)
Astronomical Journal     Full-text available via subscription   (Followers: 8)
Astronomical Review     Open Access   (Followers: 4)
Astronomische Nachrichten     Hybrid Journal   (Followers: 4)
Astronomy & Geophysics     Hybrid Journal   (Followers: 48)
Astronomy and Astrophysics     Full-text available via subscription   (Followers: 60)
Astronomy and Astrophysics     Open Access   (Followers: 32)
Astronomy and Computing     Hybrid Journal   (Followers: 2)
Astronomy Letters     Hybrid Journal   (Followers: 22)
Astronomy Reports     Hybrid Journal   (Followers: 15)
Astronomy Studies Development     Open Access   (Followers: 12)
Astroparticle Physics     Hybrid Journal   (Followers: 8)
Astrophysical Bulletin     Hybrid Journal   (Followers: 3)
Astrophysical Journal     Full-text available via subscription   (Followers: 19)
Astrophysical Journal Letters     Full-text available via subscription   (Followers: 14)
Astrophysical Journal Supplement Series     Full-text available via subscription   (Followers: 14)
Astrophysics     Hybrid Journal   (Followers: 29)
Astrophysics and Space Science     Hybrid Journal   (Followers: 46)
Astrophysics and Space Sciences Transactions (ASTRA)     Open Access   (Followers: 56)
Astropolitics: The International Journal of Space Politics & Policy     Hybrid Journal   (Followers: 12)
Celestial Mechanics and Dynamical Astronomy     Hybrid Journal   (Followers: 11)
Chinese Astronomy and Astrophysics     Full-text available via subscription   (Followers: 24)
Colloid Journal     Hybrid Journal   (Followers: 3)
Comptes Rendus Physique     Full-text available via subscription   (Followers: 2)
Computational Astrophysics and Cosmology     Open Access   (Followers: 3)
COSPAR Colloquia Series     Full-text available via subscription   (Followers: 11)
Earth, Moon, and Planets     Hybrid Journal   (Followers: 55)
Earth, Planets and Space     Open Access   (Followers: 74)
EAS Publications Series     Full-text available via subscription   (Followers: 8)
EPL Europhysics Letters     Partially Free   (Followers: 8)
Experimental Astronomy     Hybrid Journal   (Followers: 39)
Expert Opinion on Astronomy and Astrophysics     Open Access   (Followers: 7)
Extreme Life, Biospeology & Astrobiology - International Journal of the Bioflux Society     Full-text available via subscription   (Followers: 6)
Few-Body Systems     Hybrid Journal   (Followers: 1)
Foundations of Physics     Hybrid Journal   (Followers: 41)
Frontiers in Astronomy and Space Sciences     Open Access   (Followers: 12)
Galaxies     Open Access   (Followers: 6)
Globe, The     Full-text available via subscription   (Followers: 4)
Gravitation and Cosmology     Hybrid Journal   (Followers: 4)
Icarus     Hybrid Journal   (Followers: 75)
International Journal of Advanced Astronomy     Open Access   (Followers: 28)
International Journal of Astrobiology     Hybrid Journal   (Followers: 4)
International Journal of Astronomy     Open Access   (Followers: 19)
International Journal of Astronomy and Astrophysics     Open Access   (Followers: 29)
International Journal of Satellite Communications Policy and Management     Hybrid Journal   (Followers: 13)
International Letters of Chemistry, Physics and Astronomy     Open Access   (Followers: 12)
ISRN Astronomy and Astrophysics     Open Access   (Followers: 7)
Journal for the History of Astronomy     Full-text available via subscription   (Followers: 19)
Journal of Astrobiology & Outreach     Open Access   (Followers: 3)
Journal of Astronomical Instrumentation     Open Access   (Followers: 3)
Journal of Astronomical Telescopes, Instruments, and Systems     Hybrid Journal   (Followers: 5)
Journal of Astrophysics     Open Access   (Followers: 26)
Journal of Astrophysics and Astronomy     Open Access   (Followers: 52)
Journal of Atmospheric and Solar-Terrestrial Physics     Hybrid Journal   (Followers: 199)
Journal of Cosmology and Astroparticle Physics     Hybrid Journal   (Followers: 38)
Journal of Geophysical Research : Planets     Full-text available via subscription   (Followers: 179)
Journal of Geophysical Research : Space Physics     Full-text available via subscription   (Followers: 178)
Journal of High Energy Astrophysics     Full-text available via subscription   (Followers: 22)
Kinematics and Physics of Celestial Bodies     Hybrid Journal   (Followers: 10)
KronoScope     Hybrid Journal   (Followers: 1)
Macalester Journal of Physics and Astronomy     Open Access   (Followers: 4)
MNASSA : Monthly Notes of the Astronomical Society of South Africa     Full-text available via subscription   (Followers: 1)
Molecular Astrophysics     Full-text available via subscription   (Followers: 1)
Monthly Notices of the Royal Astronomical Society     Hybrid Journal   (Followers: 14)
Monthly Notices of the Royal Astronomical Society : Letters     Hybrid Journal  
Nature Astronomy     Hybrid Journal   (Followers: 8)
New Astronomy     Hybrid Journal   (Followers: 27)
New Astronomy Reviews     Full-text available via subscription   (Followers: 17)
Nonlinear Dynamics     Hybrid Journal   (Followers: 19)
NRIAG Journal of Astronomy and Geophysics     Open Access   (Followers: 5)
Open Astronomy     Open Access   (Followers: 2)
Physics of the Dark Universe     Open Access   (Followers: 4)
Planetary and Space Science     Hybrid Journal   (Followers: 101)
Planetary Science     Open Access   (Followers: 52)
Proceedings of the International Astronomical Union     Full-text available via subscription   (Followers: 2)
Publications of the Astronomical Society of Australia     Hybrid Journal   (Followers: 2)
Publications of the Astronomical Society of Japan     Hybrid Journal   (Followers: 3)
Publications of the Astronomical Society of the Pacific     Full-text available via subscription   (Followers: 4)
Research & Reviews : Journal of Space Science & Technology     Full-text available via subscription   (Followers: 17)
Research in Astronomy and Astrophysics     Full-text available via subscription   (Followers: 29)
Revista Mexicana de Astronomía y Astrofísica     Open Access   (Followers: 2)
Science China Physics, Mechanics & Astronomy     Hybrid Journal   (Followers: 4)
Solar Physics     Hybrid Journal   (Followers: 34)
Solar System Research     Hybrid Journal   (Followers: 14)
Space Science International     Open Access   (Followers: 192)
Space Science Reviews     Hybrid Journal   (Followers: 97)
Space Weather     Full-text available via subscription   (Followers: 24)
Transport and Aerospace Engineering     Open Access   (Followers: 13)
Universe     Open Access   (Followers: 5)
Similar Journals
Journal Cover
Astronomical Journal
Journal Prestige (SJR): 2.23
Citation Impact (citeScore): 3
Number of Followers: 8  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 0004-6256 - ISSN (Online) 1538-3881
Published by American Astronomical Society Homepage  [3 journals]
  • The Role of Early Giant-planet Instability in Terrestrial Planet Formation
    • Authors: David Nesvorný; Fernando V. Roig, Rogerio Deienno
      First page: 50
      Abstract: The terrestrial planets are believed to have formed by violent collisions of tens of lunar- to Mars-size protoplanets at time t 
      Citation: The Astronomical Journal
      PubDate: 2021-01-06T00:00:00Z
      DOI: 10.3847/1538-3881/abc8ef
      Issue No: Vol. 161, No. 2 (2021)
       
  • The Hubble PanCET Program: A Metal-rich Atmosphere for the Inflated Hot
           Jupiter HAT-P-41b
    • Authors: Kyle B. Sheppard; Luis Welbanks, Avi M. Mandell, Nikku Madhusudhan, Nikolay Nikolov, Drake Deming, Gregory W. Henry, Michael H. Williamson, David K. Sing, Mercedes López-Morales, Jegug Ih, Jorge Sanz-Forcada, Panayotis Lavvas, Gilda E. Ballester, Thomas M. Evans, Antonio García Muñoz, Leonardo A. dos Santos
      First page: 51
      Abstract: We present a comprehensive analysis of the 0.3–5 μ m transit spectrum for the inflated hot Jupiter HAT-P-41b. The planet was observed in transit with Hubble STIS and WFC3 as part of the Hubble Panchromatic Comparative Exoplanet Treasury (PanCET) program, and we combine those data with warm Spitzer transit observations. We extract transit depths from each of the data sets, presenting the STIS transit spectrum (0.29–0.93 μ m) for the first time. We retrieve the transit spectrum both with a free-chemistry retrieval suite (AURA) and a complementary chemical equilibrium retrieval suite (PLATON) to constrain the atmospheric properties at the day–night terminator. Both methods provide an excellent fit to the observed spectrum. Both AURA and PLATON retrieve a metal-rich atmosphere for almost all model assumptions (most likely O/H ratio of ##IMG## [http://ej.iop.org/images/1538-3881/161/2/51/ajab...] {${\mathrm{log}}_{10}Z/{Z}_{\odot }={1.46}_{-0.68}^{+0.53}$}
      Citation: The Astronomical Journal
      PubDate: 2021-01-06T00:00:00Z
      DOI: 10.3847/1538-3881/abc8f4
      Issue No: Vol. 161, No. 2 (2021)
       
  • SDSS-IV MaNGA: Modeling the Spectral Line-spread Function to Subpercent
           Accuracy
    • Authors: David R. Law; Kyle B. Westfall, Matthew A. Bershady, Michele Cappellari, Renbin Yan, Francesco Belfiore, Dmitry Bizyaev, Joel R. Brownstein, Yanping Chen, Brian Cherinka, Niv Drory, Daniel Lazarz, Shravan Shetty
      First page: 52
      Abstract: The Sloan Digital Sky Survey IV Mapping Nearby Galaxies at APO (MaNGA) program has been operating from 2014 to 2020, and has now observed a sample of 9269 galaxies in the low redshift universe ( z  ∼ 0.05) with integral-field spectroscopy. With rest-optical ( λλ 0.36–1.0 μ m) spectral resolution R ∼ 2000 the instrumental spectral line-spread function (LSF) typically has 1 σ width of about 70 km s −1 , which poses a challenge for the study of the typically 20–30 km s −1 velocity dispersion of the ionized gas in present-day disk galaxies. In this contribution, we present a major revision of the MaNGA data pipeline architecture, focusing particularly on a variety of factors impacting the effective LSF (e.g., under-sampling, spectral rectification, and data cube construction). Through comparison with external assessments of the MaNGA data provided by substantially higher-resolution R  ∼ 10,000 instruments, we demonstrate that the...
      Citation: The Astronomical Journal
      PubDate: 2021-01-06T00:00:00Z
      DOI: 10.3847/1538-3881/abcaa2
      Issue No: Vol. 161, No. 2 (2021)
       
  • Phase Modeling of the TRAPPIST-1 Planetary Atmospheres
    • Authors: Stephen R. Kane; Tiffany Jansen, Thomas Fauchez, Franck Selsis, Alma Y. Ceja
      First page: 53
      Abstract: Transiting compact multiplanet systems provide many unique opportunities to characterize the planets, including studies of size distributions, mean densities, orbital dynamics, and atmospheric compositions. The relatively short orbital periods in these systems ensure that events requiring specific orbital locations of the planets (such as primary transit and secondary eclipse points) occur with high frequency. The orbital motion and associated phase variations of the planets provide a means to constrain the atmospheric compositions through measurement of their albedos. Here we describe the expected phase variations of the TRAPPIST-1 system and times of superior conjunction when the summation of phase effects produce maximum amplitudes. We also describe the infrared flux emitted by the TRAPPIST-1 planets and the influence on the overall phase amplitudes. We further present the results from using the global circulation model ROCKE-3D to model the atmospher...
      Citation: The Astronomical Journal
      PubDate: 2021-01-06T00:00:00Z
      DOI: 10.3847/1538-3881/abcfbe
      Issue No: Vol. 161, No. 2 (2021)
       
  • MOA-2009-BLG-319Lb: A Sub-Saturn Planet inside the Predicted Mass Desert
    • Authors: Sean K. Terry; Aparna Bhattacharya, David P. Bennett, Jean-Philippe Beaulieu, Naoki Koshimoto, Joshua W. Blackman, Ian A. Bond, Andrew A. Cole, Calen B. Henderson, Jessica R. Lu, Jean Baptiste Marquette, Clément Ranc, Aikaterini Vandorou
      First page: 54
      Abstract: We present an adaptive optics (AO) analysis of images from the Keck II telescope NIRC2 instrument of the planetary microlensing event MOA-2009-BLG-319. The ∼10 yr baseline between the event and the Keck observations allows the planetary host star to be detected at a separation of 66.5 ± 1.7 mas from the source star, consistent with the light-curve model prediction. The combination of the host star brightness and light-curve parameters yields host star and planet masses of M host  = 0.524 ± 0.048 M ⊙ and m p = 67.3 ± 6.2 M ⊕ at a distance of D L = 7.1 ± 0.7 kpc. The star−planet projected separation is 2.03 ± 0.21 au. The planet-to-star mass ratio of this system, q  = (3.857 ± 0.029) × 10 −4 , places it in the predicted “planet desert” at 10 −4 
      Citation: The Astronomical Journal
      PubDate: 2021-01-06T00:00:00Z
      DOI: 10.3847/1538-3881/abcc60
      Issue No: Vol. 161, No. 2 (2021)
       
  • A Search for Technosignatures around 31 Sun-like Stars with the Green Bank
           Telescope at 1.15–1.73 GHz
    • Authors: Jean-Luc Margot; Pavlo Pinchuk, Robert Geil, Stephen Alexander, Sparsh Arora, Swagata Biswas, Jose Cebreros, Sanjana Prabhu Desai, Benjamin Duclos, Riley Dunne, Kristy Kwan Lin Fu, Shashwat Goel, Julia Gonzales, Alexander Gonzalez, Rishabh Jain, Adrian Lam, Briley Lewis, Rebecca Lewis, Grace Li, Mason MacDougall, Christopher Makarem, Ivan Manan, Eden Molina, Caroline Nagib, Kyle Neville, Connor O’Toole, Valerie Rockwell, Yoichiro Rokushima, Griffin Romanek, Carlyn Schmidgall, Samar Seth, Rehan Shah, Yuri Shimane, Myank Singhal, Armen Tokadjian, Lizvette Villafana, Zhixian Wang, In Yun, Lujia Zhu, Ryan S. Lynch
      First page: 55
      Abstract: We conducted a search for technosignatures in 2018 and 2019 April with the L -band receiver (1.15–1.73 GHz) of the 100 m diameter Green Bank Telescope. These observations focused on regions surrounding 31 Sun-like stars near the plane of the Galaxy. We present the results of our search for narrowband signals in this data set, as well as improvements to our data processing pipeline. Specifically, we applied an improved candidate signal detection procedure that relies on the topographic prominence of the signal power, which nearly doubles the signal detection count of some previously analyzed data sets. We also improved the direction-of-origin filters that remove most radio frequency interference (RFI) to ensure that they uniquely link signals observed in separate scans. We performed a preliminary signal injection and recovery analysis to test the performance of our pipeline. We found that our pipeline recovers 93% of the injected signals over the usable frequency range of t...
      Citation: The Astronomical Journal
      PubDate: 2021-01-06T00:00:00Z
      DOI: 10.3847/1538-3881/abcc77
      Issue No: Vol. 161, No. 2 (2021)
       
  • Hubble WFC3 Spectroscopy of the Habitable-zone Super-Earth LHS 1140 b
    • Authors: Billy Edwards; Quentin Changeat, Mayuko Mori, Lara O. Anisman, Mario Morvan, Kai Hou Yip, Angelos Tsiaras, Ahmed Al-Refaie, Ingo Waldmann, Giovanna Tinetti
      First page: 44
      Abstract: Atmospheric characterization of temperate, rocky planets is the holy grail of exoplanet studies. These worlds are at the limits of our capabilities with current instrumentation in transmission spectroscopy and challenge our state-of-the-art statistical techniques. Here we present the transmission spectrum of the temperate super-Earth LHS 1140b using the Hubble Space Telescope (HST). The Wide Field Camera 3 (WFC3) G141 grism data of this habitable-zone ( T eq = 235 K) super-Earth ( R = 1.7 R ⊕ ) shows tentative evidence of water. However, the signal-to-noise ratio, and thus the significance of the detection, is low and stellar contamination models can cause modulation over the spectral band probed. We attempt to correct for contamination using these models and find that, while many still lead to evidence for water, some could provide reasonable fits to the data without the need for molecular absorption although most of these cause features ...
      Citation: The Astronomical Journal
      PubDate: 2020-12-24T00:00:00Z
      DOI: 10.3847/1538-3881/abc6a5
      Issue No: Vol. 161, No. 1 (2020)
       
  • Physical Parameters of the Multiplanet Systems HD 106315 and GJ 9827
    • Authors: Molly R. Kosiarek; David A. Berardo, Ian J. M. Crossfield, Cesar Laguna, Caroline Piaulet, Joseph M. Akana Murphy, Steve B. Howell, Gregory W. Henry, Howard Isaacson, Benjamin Fulton, Lauren M. Weiss, Erik A. Petigura, Aida Behmard, Lea A. Hirsch, Johanna Teske, Jennifer A. Burt, Sean M. Mills, Ashley Chontos, Teo Močnik, Andrew W. Howard, Michael Werner, John H. Livingston, Jessica Krick, Charles Beichman, Varoujan Gorjian, Laura Kreidberg, Caroline Morley, Jessie L. Christiansen, Farisa Y. Morales, Nicholas J. Scott, Jeffrey D. Crane, Sharon Xuesong Wang, Stephen A. Shectman, Lee J. Rosenthal, Samuel K. Grunblatt, Ryan A. Rubenzahl, Paul A. Dalba, Steven Giacalone, Chiara Dane Villanueva, Qingtian Liu, Fei Dai, Michelle L. Hill, Malena Rice, Stephen R. Kane, Andrew W. Mayo
      First page: 47
      Abstract: HD 106315 and GJ 9827 are two bright, nearby stars that host multiple super-Earths and sub-Neptunes discovered by K2 that are well suited for atmospheric characterization. We refined the planets’ ephemerides through Spitzer transits, enabling accurate transit prediction required for future atmospheric characterization through transmission spectroscopy. Through a multiyear high-cadence observing campaign with Keck/High Resolution Echelle Spectrometer and Magellan/Planet Finder Spectrograph, we improved the planets’ mass measurements in anticipation of Hubble Space Telescope transmission spectroscopy. For GJ 9827, we modeled activity-induced radial velocity signals with a Gaussian process informed by the Calcium II H&K lines in order to more accurately model the effect of stellar noise on our data. We measured planet masses of M b = 4.87 ± 0.37 M ⊕ , M c  = 1.92 ± 0.49 M ⊕ , and M
      Citation: The Astronomical Journal
      PubDate: 2020-12-31T00:00:00Z
      DOI: 10.3847/1538-3881/abca39
      Issue No: Vol. 161, No. 1 (2020)
       
  • Mildly Hierarchical Triple Dynamics and Applications to the Outer Solar
           System
    • Authors: Hareesh Bhaskar; Gongjie Li, Sam Hadden, Matthew J. Payne, Matthew J. Holman
      First page: 48
      Abstract: Three-body interactions are ubiquitous in astrophysics. For instance, Kozai–Lidov oscillations in hierarchical triple systems have been studied extensively and applied to a wide range of astrophysical systems. However, mildly hierarchical triples also play an important role, but they are less explored. In this work, we consider the secular dynamics of a test particle in a mildly hierarchical configuration. We find the limit within which the secular approximation is reliable when the outer perturber is in a circular orbit. In addition, we present resonances and chaotic regions using surface-of-section plots, and characterize regions of phase space that allow large eccentricity and inclination variations. Finally, we apply the secular results to the outer Solar System. We focus on the distribution of extreme trans-Neptunian objects (eTNOs) under the perturbation of a possible outer planet (Planet 9), and find that in addition to a low-inclination Planet 9, a polar or a counter-orb...
      Citation: The Astronomical Journal
      PubDate: 2020-12-31T00:00:00Z
      DOI: 10.3847/1538-3881/abcbfc
      Issue No: Vol. 161, No. 1 (2020)
       
  • Main-sequence Scatter is Real: The Joint Dependence of Galaxy Clustering
           on Star Formation and Stellar Mass
    • Authors: Angela M. Berti; Alison L. Coil, Andrew P. Hearin, Peter S. Behroozi
      First page: 49
      Abstract: We present new measurements of the clustering of stellar-mass-complete samples of ∼40,000 SDSS galaxies at z ∼ 0.03 as a joint function of stellar mass and specific star formation rate (sSFR). Our results confirm what Coil et al. find at z ∼ 0.7: galaxy clustering is a stronger function of sSFR at fixed stellar mass than of stellar mass at fixed sSFR. We also find that galaxies above the star-forming main sequence (SFMS) with higher sSFR are less clustered than galaxies below the SFMS with lower sSFR, at a given stellar mass. A similar trend is present for quiescent galaxies. This confirms that main-sequence scatter, and scatter within the quiescent sequence, is physically connected to the large-scale cosmic density field. We compare the resulting galaxy bias versus sSFR, and relative bias versus sSFR ratio, for different galaxy samples across0 
      Citation: The Astronomical Journal
      PubDate: 2020-12-31T00:00:00Z
      DOI: 10.3847/1538-3881/abcc6a
      Issue No: Vol. 161, No. 1 (2020)
       
 
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