Results 81 to 90 of about 335,375 (390)
The Scatter in the Relationship between Redshift and the Radio-to-Submm Spectral Index [PDF]
, 1999 We derive the scatter in the relationship between redshift and radio-to-submm spectral index, alpha^{350}_{1.4}, using the observed spectral energy distributions of 17 low redshift star forming galaxies. A mean galaxy model is derived, along with the rms
Blain A. W. +5 more
core +4 more sources
The Redshift of the BL Lac Object TXS 0506+056 [PDF]
, 2018 The bright BL Lac object TXS 0506+056 is the most likely counterpart of the IceCube neutrino event EHE 170922A. The lack of this redshift prevents a comprehensive understanding of the modeling of the source.
S. Paiano +3 more
semanticscholar +1 more source
Infrared resummation for biased tracers in redshift space [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 We incorporate the effects of redshift space distortions and non-linear bias in time-sliced perturbation theory (TSPT). This is done via a new method that allows to map cosmological correlation functions from real to redshift space.
M. Ivanov, S. Sibiryakov
semanticscholar +1 more source
Sakarya University Journal of Education, 2018 Bu çalışmanın amacı, Hubble’ın “Kırmızıya KaymaYasası” çerçevesinde test oluşturularak fen bilgisi öğretmen adaylarının bilgive bilişsel süreç yeterliklerinin incelenmesidir. Araştırmada nitel durumçalışması deseni kullanılmıştır.
Nilgün Aydın, Abdullah Aydın
doaj +1 more source
On the Anticorrelation between Duration and Redshift in Gamma-Ray Bursts
The Astrophysical Journal, 2023 For gamma-ray bursts (GRBs) with durations greater than two seconds (so-called long GRBs), the intrinsic prompt gamma-ray emission appears, on average, to last longer for bursts at lower redshifts.
Nicole Lloyd-Ronning +6 more
doaj +1 more source
Photometric redshifts and quasar probabilities from a single, data-driven generative model
, 2012 We describe a technique for simultaneously classifying and estimating the redshift of quasars. It can separate quasars from stars in arbitrary redshift ranges, estimate full posterior distribution functions for the redshift, and naturally incorporate ...
Abazajian +83 more
core +1 more source
Measurement of redshift dependent cross correlation of HSC clusters and Fermi $\gamma$ rays [PDF]
, 2019 The cross-correlation study of the unresolved $\gamma$-ray background (UGRB) with galaxy clusters has a potential to reveal the nature of the UGRB. In this paper, we perform a cross-correlation analysis between $\gamma$-ray data by the Fermi Large Area ...
Hashimoto, Daiki +6 more
core +2 more sources
Test of the Gravitational Redshift with Galileo Satellites in an Eccentric Orbit. [PDF]
Physical Review Letters, 2018 On August 22, 2014, the satellites GSAT-0201 and GSAT-0202 of the European GNSS Galileo were unintentionally launched into eccentric orbits. Unexpectedly, this has become a fortunate scientific opportunity since the onboard hydrogen masers allow for a ...
S. Herrmann +16 more
semanticscholar +1 more source
Redshift and Photon Energy Attenuation Constant in Vacuum
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektronikiThere obtained an estimate of the minimum value of the photon energy attenuation constant in vacuum α: α = 8 · 10–19 m–1 based on quantum concepts of the structure of vacuum and data on the red shift of the emitter spectra of distant galaxies. Presumably,
A. A. Kurayev, V. V. Matveyenka
doaj +1 more source
Gravitational redshift and asymmetric redshift-space distortions for stacked clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We derive the expression for the observed redshift in the weak field limit in the observer's past light cone, including all relativistic terms up to second order in velocity. We then apply it to compute the cluster-galaxy cross-correlation functions (CGCF) using N-body simulations.
Shaun Cole +4 more
openaire +5 more sources