Results 71 to 80 of about 16,452 (194)

The Blazar Sequence 2.0 [PDF]

open access: yesGalaxies, 2016
This paper discusses the spectral energy distribution (SED) of all blazars with redshift detected by the Fermi satellite and listed in the 3LAC catalog. The so called “blazar sequence” from the phenomenological point of view will be updated, with no theory or modelling. It will be shown that: (i) pure data show that jet and accretion power are related;
openaire   +4 more sources

The recognition of blazars and the blazar spectral sequence [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2005
Accepted for publication in ...
Antón, S., Browne, I. W A
openaire   +2 more sources

Increasing Latinx migratory high school students' engineering interest and self‐efficacy beliefs: A culturally responsive gamified engineering design activity

open access: yesJournal of Engineering Education, Volume 115, Issue 1, January 2026.
Abstract Background The ongoing underrepresentation of Latinx students, particularly girls, in engineering calls for new approaches to broaden participation. The present study aims to address this disparity by implementing a culturally responsive gamified engineering activity for migratory high school students, an often‐overlooked subset of Latinx ...
Dina Verdín   +2 more
wiley   +1 more source

The VLBA-BU-BLAZAR Multi-Wavelength Monitoring Program

open access: yesGalaxies, 2016
We describe a multiwavelength program of monitoring of a sample of bright γ-ray blazars, which the Boston University (BU) group has being carrying out since June 2007.
Svetlana Jorstad, Alan Marscher
doaj   +1 more source

Blazar Jets as Possible Sources of Ultra-High Energy Photons: A Short Review

open access: yesUniverse, 2022
In this paper, I present a qualitative discussion on the prospect of production of ultra-high photons in blazars. The sources are a subclass of active galactic nuclei which host supermassive black holes and fire relativistic jets into the intergalactic ...
Gopal Bhatta
doaj   +1 more source

On the Nature of MeV-blazars

open access: yes, 2002
Broad-band spectra of the FSRQ (flat-spectrum-radio quasars) detected in the high energy gamma-ray band imply that there may be two types of such objects: those with steep gamma-ray spectra, hereafter called MeV-blazars, and those with flat gamma-ray ...
Baker J. C.   +16 more
core   +1 more source

From the ‘blazar sequence' to unification of blazars and radio galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
7 pages, 2 table, 5 figures, accepted for publication in ...
Xiong, Dingrong   +3 more
openaire   +2 more sources

Myeloid‐Derived Suppressor Cells: Immunoregulatory Roles and Therapeutic Prospects in Immune‐Mediated Hematological Disorders

open access: yesJournal of Immunology Research, Volume 2026, Issue 1, 2026.
Myeloid‐derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells that have been increasingly defined and characterized over the past two decades, known for their remarkable capacity to expand and exert immunosuppressive effects in various pathological contexts, such as malignancies, infections, and inflammatory diseases.
Qi Liu   +7 more
wiley   +1 more source

The University of Michigan Centimeter-Band All Stokes Blazar Monitoring Program: Single-Dish Polarimetry as a Probe of Parsec-Scale Magnetic Fields

open access: yesGalaxies, 2017
The University of Michigan 26-m paraboloid was dedicated to obtaining linear polarization and total flux density observations of blazars from the mid-1960s until June 2012, providing an unprecedented record tracking centimeter-band variability over ...
Margo F. Aller   +2 more
doaj   +1 more source

Gamma-Ray Cosmology and Tests of Fundamental Physics

open access: yesGalaxies, 2022
The propagation of gamma-rays over cosmological distances is the subject of extensive theoretical and observational research at GeV and TeV energies. The mean free path of gamma-rays in the cosmic web is limited above 100 GeV due to the production of ...
Jonathan Biteau, Manuel Meyer
doaj   +1 more source

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