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Related papers: A Fundamental Plane for Gamma-Ray Pulsars

200 papers

We compute the patterns of $\gamma$-ray emission due to curvature radiation in dissipative pulsar magnetospheres. Our ultimate goal is to construct macrophysical models that are able to reproduce the observed $\gamma$-ray light-curve…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Constantinos Kalapotharakos , Alice K. Harding , Demosthenes Kazanas

Some of the most energetic pulsars exhibit rotation-modulated gamma-ray emission in the $0.1$ to $100$ GeV band. The luminosity of this emission is typically $0.1\text{-}10\%$ of the pulsar spin-down power (gamma-ray efficiency), implying…

High Energy Astrophysical Phenomena · Physics 2023-03-20 Hayk Hakobyan , Alexander Philippov , Anatoly Spitkovsky

The Fermi Large Area Telescope has revolutionised the $\gamma$-ray pulsar field, increasing the population to over 250 detected pulsars. The majority display spectra with exponential cutoffs in a narrow range around a few GeV. Models…

High Energy Astrophysical Phenomena · Physics 2021-03-22 M. Barnard

We study the gamma-ray emission from millisecond pulsars within the Milky Way's globular cluster system in order to measure the luminosity function of this source population. We find that these pulsars have a mean luminosity of $\langle…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Aurelio Amerio , Dan Hooper , Tim Linden

We report on a likelihood stacking search for gamma-ray pulsars at 362 high-latitude locations that coincide with known radio pulsar positions. We observe a stacked signal conservatively 2.5$\sigma$ over the background. Stacking their…

High Energy Astrophysical Phenomena · Physics 2023-08-04 Yuzhe Song , Timothy A. D. Paglione , Joshua Tan , Charles Lee-Georgescu , Danisbel Herrera

We analyze the fundamental plane projections of elliptical galaxies as a function of luminosity, using a sample of approximately 80,000 galaxies drawn from Data Release 4 (DR4) of the Sloan Digital Sky Survey (SDSS). We separate brightest…

Astrophysics · Physics 2015-06-24 Louis-Benoit Desroches , Eliot Quataert , Chung-Pei Ma , Andrew A. West

Observations of high energy gamma rays recently revealed a persistent source in spatial coincidence with the binary system Eta Carinae. Since modulation of the observed gamma-ray flux on orbital time scales has not been reported so far, an…

High Energy Astrophysical Phenomena · Physics 2012-08-14 K. Reitberger , O. Reimer , A. Reimer , M. Werner , K. Egberts , H. Takahashi

The dramatic increase in the number of known gamma-ray pulsars since the launch of the Fermi Gamma-ray Space Telescope (formerly GLAST) offers the first opportunity to study a population of these high-energy objects. This catalog summarizes…

High Energy Astrophysical Phenomena · Physics 2019-08-13 A. A. Abdo

We report our analysis of the Fermi Large Area Telescope data for 39 millisecond pulsars (MSPs) listed in the second $\gamma$-ray pulsar catalog. Spectra of the pulsars are obtained. We fit the spectra with a function of a power law with…

High Energy Astrophysical Phenomena · Physics 2016-11-09 Yi Xing , Zhongxiang Wang

(abridged) Thanks to the recent discovery by Fermi of about fifty new gamma-ray pulsars, it becomes possible to look for statistical properties of their pulsed high-energy emission, especially their light-curves and phase-resolved spectra.…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Jérôme Pétri

Distance measurements of gamma-ray pulsars are challenging questions in present pulsar studies. The Large Area Telescope (LAT) aboard the Fermi gamma-ray observatory discovered more than 70 gamma-ray pulsars including 24 new gamma-selected…

High Energy Astrophysical Phenomena · Physics 2015-05-27 W. Wang

Pulsar wind nebulae are a prominent class of very high energy (E > 0.1 TeV) Galactic sources. Their Gamma-ray spectra are interpreted as due to inverse Compton scattering of ultrarelativistic electrons on the ambient photons, whereas the…

Near-infrared imaging data on 251 early-type galaxies in clusters and groups are used to construct the near-infrared Fundamental Plane (FP) r_eff ~ sigma_0^1.53 <Sigma_K>_eff^-0.79. The slope of the FP therefore departs from the virial…

Astrophysics · Physics 2009-10-30 M. A. Pahre , S. G. Djorgovski , R. R. de Carvalho

Millisecond pulsars (MSPs) and normal non-recycled pulsars are both detected in $\gamma$-rays. However, it appears that a much larger fraction of known energetic and nearby MSPs are detected in $\gamma$-rays, in comparison with normal…

High Energy Astrophysical Phenomena · Physics 2015-06-18 L. Guillemot , T. M. Tauris

We develop observational tests of the idea that dissipation in gas-rich mergers produces the fundamental plane (FP) and related correlations obeyed by ellipticals. The FP 'tilt' implies lower-mass ellipticals have a higher ratio of stellar…

Astrophysics · Physics 2009-11-13 Philip F. Hopkins , Thomas J. Cox , Lars Hernquist

The origin and radiation mechanisms of high energy emissions from pulsars have remained mysterious since their discovery. Here we report, based on a sample of 68 pulsars, observational connection of non-thermal X-ray emissions from pulsars…

High Energy Astrophysical Phenomena · Physics 2023-02-15 Hsiang-Kuang Chang , Jr-Yue Hsiang , Che-Yen Chu , Yun-Hsin Chung , Tze-Hsiang Su , Tzu-Hsuan Lin , Chien-You Huang

$\gamma$-ray radiation from pulsars is usually thought to be mostly produced by the synchro-curvature losses of accelerated particles. Here we present a systematic study of all currently reported, good-quality Fermi-LAT pulsar spectral…

High Energy Astrophysical Phenomena · Physics 2015-07-16 Daniele Viganò , Diego F. Torres , Jonatan Martín

We show that it is possible to define a purely Photometric Fundamental Plane (PFP) for early-type galaxies. This relation is similar to the standard Fundamental Plane (FP), and is obtained by replacing the velocity dispersion parameter with…

Astrophysics · Physics 2009-10-30 Marco Scodeggio , Riccardo Giovanelli , Martha Haynes

The prevalent view that the radio-loud gamma-ray pulsars have gamma-ray luminosities that exceed their radio luminosities by several orders of magnitude is based on the assumption that the decay with distance of their gamma-ray fluxes obeys…

High Energy Astrophysical Phenomena · Physics 2023-03-02 Houshang Ardavan

The Fundamental Plane (FP) describes the relation between the stellar mass, size, and velocity dispersion of elliptical galaxies; the Faber-Jackson relation (FJR) is its projection onto {mass, velocity} space. In this work we redeploy and…

Astrophysics of Galaxies · Physics 2016-12-07 Harry Desmond , Risa H. Wechsler