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: 178)
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 AstronomĂ­a y AstrofĂ­sica     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
Journal of Cosmology and Astroparticle Physics
Journal Prestige (SJR): 1.089
Citation Impact (citeScore): 4
Number of Followers: 38  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1475-7516 - ISSN (Online) 1475-7516
Published by IOP Homepage  [72 journals]
  • Phase transitions in an expanding universe: stochastic gravitational waves
           in standard and non-standard histories
    • Authors: Huai-Ke Guo; Kuver Sinha, Daniel Vagie Graham White
      First page: 001
      Abstract: We undertake a careful analysis of stochastic gravitational wave production from cosmological phase transitions in an expanding universe, studying both a standard radiation as well as a matter dominated history. We analyze in detail the dynamics of the phase transition, including the false vacuum fraction, bubble lifetime distribution, bubble number density, mean bubble separation, etc., for an expanding universe. We also study the full set of differential equations governing the evolution of plasma and the scalar field during the phase transition and generalize results obtained in Minkowski spacetime. In particular, we generalize the sound shell model to the expanding universe and determine the velocity field power spectrum. This ultimately provides an accurate calculation of the gravitational wave spectrum seen today for the dominant source of sound waves. For the amplitude of the gravitational wave spectrum visible today, we find a suppression factor arising from the finite ...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-04T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/001
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Speeding up the detectability of the harmonic-space galaxy bispectrum
    • Authors: Francesco Montanari; Stefano Camera
      First page: 002
      Abstract: We present a method that allows us for the first time to estimate the signal-to-noise ratio (SNR) of the harmonic-space galaxy bispectrum induced by gravity, a complementary probe to already well established Fourier-space clustering analyses. We show how to do it considering only ~1000 triangle configurations in multipole space, corresponding to a computational speedup of a factor ##IMG## [https://ej.iop.org/icons/Entities/calO.gif] {Script O} (10 2 )− ##IMG## [https://ej.iop.org/icons/Entities/calO.gif] {Script O} (10 3 ), depending on the redshift bin, when including mildly non-linear scales. Assuming observational specifications consistent with forthcoming spectroscopic and photometric galaxy surveys like the \euc\ satellite and the Square Kilometre Array (phase 1), we show: that ...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-04T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/002
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Revised estimates of CMB B -mode polarization induced by patchy
           reionization
    • Authors: Anirban Roy; Girish Kulkarni, P. Daniel Meerburg, Anthony Challinor, Carlo Baccigalupi, Andrea Lapi Martin G. Haehnelt
      First page: 003
      Abstract: The search for primordial gravitational waves through the B -mode polarization pattern in the CMB is one of the major goals of current and future CMB experiments. Besides foregrounds, a potential hurdle in this search is the anisotropic secondary B -mode polarization generated by the scattering of CMB photons off free electrons produced during patchy cosmological reionization. Robust predictions of these secondary anisotropies are challenging because of uncertainties in the reionization history. In this paper we revise estimates of the reionization-induced B -mode signal by incorporating recent advances in the understanding of reionization through observations of the Lyman-α forest. To derive these B -mode estimates, we use high-dynamic-range radiative transfer simulations of reionization that are calibrated to the Lyα data. These simulations are also consistent with a variety of other high-redshift observations. We find that...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-04T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/003
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Isocurvature modes: joint analysis of the CMB power spectrum and
           bispectrum
    • Authors: T. Montandon; G. Patanchon B. van Tent
      First page: 004
      Abstract: We perform a joint analysis of the power spectrum and the bispectrum of the CMB temperature and polarization anisotropies to improve the constraints on isocurvature modes. We construct joint likelihoods, both for the existing Planck data, and to make forecasts for the future LiteBIRD and CMB-S4 experiments. We assume a general two-field inflation model with five free parameters, leading to one isocurvature mode (which can be CDM density, neutrino density or neutrino velocity) arbitrarily correlated with the adiabatic mode. We theoretically assess in which cases (of detecting and/or fixing parameters) improvements can be expected, to guide our subsequent numerical analyses. We find that for Planck, which detected neither isocurvature modes nor primordial non-Gaussianity, the joint analysis does not improve the constraints in the general case. However, if we fix additional parameters in the model, the improvements can be highly significant depending on the chosen parameter values. ...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-04T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/004
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Information geometry in cosmological inference problems
    • Authors: Eileen Giesel; Robert Reischke, Björn Malte Schäfer Dominic Chia
      First page: 005
      Abstract: Statistical inference often involves models which are non-linear in the parameters and which therefore typically exhibit non-Gaussian posterior distributions. These non-Gaussianities can be prominent especially when data is limited or not constraining enough. Many computational and analytical tools exist that can deal with non-Gaussian distributions, and empirical Gaussianisation transforms can be constructed that can reduce the amount of non-Gaussianity in a distribution. In this work, we employ methods from information geometry, which considers a set of probability distributions for some given model to be a manifold with a metric Riemannian structure, given by the Fisher information. In this framework we study the differential geometrical meaning of non-Gaussianities in a higher order Fisher approximation, and their respective transformation behaviour under re-parameterisation, which corresponds to a chart transition on the statistical manifold. While weak non-Gaussianities van...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-04T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/005
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Limits on w CDM from the EFTofLSS with the PyBird code
    • Authors: Guido D'Amico; Leonardo Senatore Pierre Zhang
      First page: 006
      Abstract: We apply the Effective Field Theory of Large-Scale Structure to analyze the w CDM cosmological model. By using the full shape of the power spectrum and the BAO post-reconstruction measurements from BOSS, the Supernovae from Pantheon, and a prior from BBN, we set the competitive CMB-independent limit w =−1.046 −0.052 +0.055 at 68% C.L. After adding the Planck CMB data, we find w =−1.023 −0.030 +0.033 at 68% C.L. Our results are obtained using PyBird, a new, fast Python-based code which we make publicly available.
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-04T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/006
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Impacts of dark matter on the curvature of the neutron star
    • Authors: H.C. Das; Ankit Kumar, Bharat Kumar, S.K. Biswal S.K. Patra
      First page: 007
      Abstract: The effects of dark matter (DM) on the curvatures of the neutron star (NS) are examined by using the stiff and soft relativistic mean-field equation of states. The curvatures of the NSs are calculated with the variation of baryon density. It is found that the radial variation of different curvatures significantly affected by DM inside the star. The surface curvature is found to be more remarkable for the massive star. The effects of DM on the compactness of the maximum NS mass is less as compared to canonical star. The binding energy of the NS goes towards positive with the increase of DM momentum and makes the system unstable.
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-05T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/007
      Issue No: Vol. 2021, No. 01 (2021)
       
  • Instability of compact stars with a nonminimal scalar-derivative coupling
    • Authors: Ryotaro Kase; Shinji Tsujikawa
      First page: 008
      Abstract: For a theory in which a scalar field ##IMG## [https://ej.iop.org/icons/Entities/phi.gif] {phi} has a nonminimal derivative coupling to the Einstein tensor G μ ν of the form ##IMG## [https://ej.iop.org/icons/Entities/phi.gif] {phi} G μ ν ∇ μ ∇ ν ##IMG## [https://ej.iop.org/icons/Entities/phi.gif] {phi} , it is known that there exists a branch of static and spherically-symmetric relativistic stars endowed with a scalar hair in their interiors. We study the stability of such hairy solutions with a radial field dependence ##IMG## [https://ej.iop.org/icons/Entities/phi.gif] {phi} ( r ) against odd- and even-parity perturbations. We show tha...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-05T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/008
      Issue No: Vol. 2021, No. 01 (2021)
       
  • The effects of massive neutrinos on the linear point of the correlation
           function
    • Authors: G. Parimbelli; S. Anselmi, M. Viel, C. Carbone, F. Villaescusa-Navarro, P.S. Corasaniti, Y. Rasera, R. Sheth, G.D. Starkman I. Zehavi
      First page: 009
      Abstract: The linear point (LP), defined as the mid-point between the dip and the peak of the two-point clustering correlation function (TPCF), has been shown to be an excellent standard ruler for cosmology. In fact, it is nearly redshift-independent, being weakly sensitive to non-linearities, scale-dependent halo bias and redshift-space distortions. So far, these findings were tested assuming that neutrinos are massless; in this paper we extend the analysis to massive-neutrino cosmologies. In particular, we examine if the scale-dependent growth induced by neutrinos affects the LP position and if it is possible to detect the neutrino masses using the shift of the LP compared to the massless-neutrino case. For our purposes, we employ two sets of state-of-the-art N -body simulations with massive neutrinos. For each of them we measure the TPCF of cold dark matter (CDM) and halos and, to estimate the LP, fit the TPCF with a model-independent parametric fit in the range of scales of the B...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2021-01-05T00:00:00Z
      DOI: 10.1088/1475-7516/2021/01/009
      Issue No: Vol. 2021, No. 01 (2021)
       
  • The effects on CMB power spectra and bispectra from the polarization
           rotation and its correlations with temperature and E-polarization
    • Authors: Hua Zhai; Si-Yu Li, Mingzhe Li, Hong Li Xinmin Zhang.
      First page: 051
      Abstract: The Chern-Simons term, through which the cosmic Axion-like field couples to the electromagnetic field, has the effect to rotate CMB polarization directions and to break the CPT symmetry. This rotation will change the CMB power spectra, no matter isotropic or anisotropic the rotation angle is. In this paper we revisit this issue by further considering the correlations between the anisotropic rotation angle α and the CMB temperature and CMB E polarization fields. These correlations could be generated in the Axion-like models with nonzero potential under the adiabatic initial condition. We first investigate how these correlations contribute further modifications to the CMB power spectra, then calculate the CMB bispectra for the temperature and rotated polarization fields. These bispectra would vanish if the T α and E α correlations are absent. So, they are useful in searching for CPT violation and the T α and E α correlations arisen in the Axion-like m...
      Citation: Journal of Cosmology and Astroparticle Physics
      PubDate: 2020-12-31T00:00:00Z
      DOI: 10.1088/1475-7516/2020/12/051
      Issue No: Vol. 2020, No. 12 (2020)
       
 
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