Publications (31)
New High-z Fermi BL Lacs with the Photometric Dropout Technique
A. Kaur, A. Rau, M. Ajello +6
Determining redshifts for BL Lacertae (BL Lac) objects using the traditional spectroscopic method is challenging due to the absence of strong emission lines in their optical spectr…
Hunting distant BL Lacs with the photometric technique using Swift and SARA
M. Rajagopal, A. Kaur, A. Ajello +5
BL Lacertae objects (BL Lacs) represent a large fraction (22\%) of gamma-ray sources in the Third Fermi Large Area Telescope catalog (3FGL). Nearly half of the BL Lac population re…
NuSTAR Observations and multi-wavelength modeling of the high-redshift BL Lac Object 4FGL J2146.5-1344
M. Rajagopal, L. Marcotulli, M. Ajello +3
High synchrotron peak (HSP; Hz) BL Lacs are some of the most extreme accelerators in the Universe. Those found at high redshifts () challenge our unde…
NuSTAR perspective on high-redshift MeV blazars
L. Marcotulli, V. Paliya, M. Ajello +7
With bolometric luminosities exceeding erg s, powerful jets and supermassive black holes at their center, MeV blazars are some of the most extreme sources in the U…
M31N 2008-12a - the remarkable recurrent nova in M31: Pan-chromatic observations of the 2015 eruption
M. J. Darnley, M. Henze, M. F. Bode +52
The Andromeda Galaxy recurrent nova M31N 2008-12a had been observed in eruption ten times, including yearly eruptions from 2008-2014. With a measured recurrence period of $P_\mathr…
High-redshift blazars through nustar eyes
L. Marcotulli, V. S. Paliya, M. Ajello +9
The most powerful sources among the blazar family are MeV blazars. Often detected at , they usually display high X- and \gm-ray luminosities, larger-than-average jet powers an…
Impact of growth conditions on the nature of magnetism and magnetotransport of thin films
Manoj K. Srivastava, P. K. Siwach, A. Kaur +1
The impact of growth conditions on the magnetic and electrical transport properties of oriented polycrystalline Sm0.55Sr0.45MnO3 thin films prepared on nearly lattice matching LSAT…
Carrier localization and out of plane anisotropic magnetoresistance in thin films
M. K. Srivastava, A. Kaur, H. K. Singh
The impact of carrier localization on the anisotropic magnetoresistance (AMR) has been investigated in NSSMO thin films. Carrier localization is caused by the reduced average radiu…
Quality Control of Mass-Produced GEM Detectors for the CMS GE1/1 Muon Upgrade
M. Abbas, M. Abbrescia, H. Abdalla +179
The series of upgrades to the Large Hadron Collider, culminating in the High Luminosity Large Hadron Collider, will enable a significant expansion of the physics program of the CMS…
Discovering High- BL Lacs Using Swift/UVOT and SARA Observations with the Dropout Technique
Y. Sheng, K. Imam, A. Kaur +14
Measuring spectroscopic redshifts for BL Lacertae (BL Lac) objects, a class of blazar, is challenging because their optical spectrum lacks, or has weak, emission lines ( equivalent…
Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
J. C. Algaba, M. Balokovic, S. Chandra +738
The nearby elliptical galaxy M87 contains one of the only two supermassive black holes whose emission surrounding the event horizon has been imaged by the Event Horizon Telescope (…
Investigation of particle production in collisions using statistical distributions
A. Kaur, M. Kaur, R. Aggarwal
Study of the characteristic properties of charged particle production in hadron-nucleus collisions at high energies, by utilising the approaches from different statistical models i…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report, Volume 4 The DUNE Detectors at LBNF
R. Acciarri, M. A. Acero, M. Adamowski +795
A description of the proposed detector(s) for DUNE at LBNF
Identifying the 3FHL catalog: V. Results of the CTIO-COSMOS optical spectroscopy campaign 2019
M. Rajagopal, S. Marchesi, A. Kaur +3
As a follow-up of the optical spectroscopic campaign aimed at achieving completeness in the Third Catalog of Hard Fermi-LAT Sources (3FHL), we present here the results of a sample…
Breaking the habit - the peculiar 2016 eruption of the unique recurrent nova M31N 2008-12a
M. Henze, M. J. Darnley, S. C. Williams +70
Since its discovery in 2008, the Andromeda galaxy nova M31N 2008-12a has been observed in eruption every single year. This unprecedented frequency indicates an extreme object, with…
Interstrip Capacitances of the Readout Board used in Large Triple-GEM Detectors for the CMS Muon Upgrade
M. Abbas, M. Abbrescia, H. Abdalla +178
We present analytical calculations, Finite Element Analysis modeling, and physical measurements of the interstrip capacitances for different potential strip geometries and dimensio…
Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign
J. C. Algaba, J. Anczarski, K. Asada +36
In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are…
CXO J004318.8+412016, a steady supersoft X-ray source in M 31
M. Orio, G. J. M. Luna, R. Kotulla +14
We obtained an optical spectrum of a star we identify as the optical counterpart of the M31 Chandra source CXO J004318.8+412016, because of prominent emission lines of the Balmer s…
Gamma-ray Emitting Narrow Line Seyfert 1 Galaxies in The Sloan Digital Sky Survey
Vaidehi S. Paliya, M. Ajello, S. Rakshit +4
The detection of significant -ray emission from radio-loud narrow line Seyfert 1 (NLSy1s) galaxies enables us to study jets in environments different than those in blazars. How…
A genome wide dosage suppressor network reveals genetic robustness and a novel mechanism for Huntington's disease
B. Patra, Y. Kon, G. Yadav +17
Mutational robustness is the extent to which an organism has evolved to withstand the effects of deleterious mutations. We explored the extent of mutational robustness in the buddi…
Intra-Night Optical Variability Monitoring of Fermi Blazars: First Results from 1.3 m J C Bhattacharya Telescope
Vaidehi S. Paliya, C. S. Stalin, M. Ajello +1
We report the first results obtained from our campaign to characterize the intranight-optical variability (INOV) properties of {\it Fermi}~detected blazars, using the observations…
Performance of a Triple-GEM Demonstrator in Collisions at the CMS Detector
M. Abbas, M. Abbrescia, H. Abdalla +178
After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the…
Modeling the triple-GEM detector response to background particles for the CMS Experiment
M. Abbas, M. Abbrescia, H. Abdalla +186
An estimate of environmental background hit rate on triple-GEM chambers is performed using Monte Carlo (MC) simulation and compared to data taken by test chambers installed in the…
Impact of substrate on magnetic phase coexistence in bicritical thin films
M. K. Srivastava, M. P. Singh, P. K. Siwach +3
Sm0.53Sr0.47MnO3 thin films were deposited on single crystal LaAlO3 (LAO/(001)) and SrTiO3 (STO/(001)) substrates by DC magnetron sputtering. The theta-2theta and omega-2theta scan…
Identifying the 3FHL Catalog. VI. Swift Observations of 3FHL Unassociated Objects with Source Classification via Machine Learning
S. Joffre, R. Silver, M. Rajagopal +5
The Third Catalog of Hard Fermi Large Area Telescope Sources (3FHL) reports the detection of 1556 objects at E > 10 GeV. However, 177 sources remain unassociated and 23 are associa…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects
R. Acciarri, M. A. Acero, M. Adamowski +795
This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline…
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF
DUNE Collaboration, R. Acciarri, M. A. Acero +796
The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described.
Impact of strain on metamagnetic transitions in thin films
M. K. Srivastava, A. Kaur, K. K. Maurya +2
SSMO50 thin films were deposited by DC magnetron sputtering on LAO and STO substrates. The film on LAO is under compressive strain, while the film on STO is under tensile strain. A…
Revealing high-z Fermi-LAT BL Lacs using Swift and SARA data with photometric analysis
Y. Sheng, M. Rajagopal, A. Kaur +12
BL Lacertae (BL Lac) objects are a subclass of blazar, distinguished by their featureless optical spectrum. The featureless spectrum presents a challenge in measuring the redshift…
CXOM31 J004253.1+411422: The first ultra-luminous X-ray transient in M 31
A. Kaur, M. Henze, F. Haberl +6
We seek clarification of the nature of X-ray sources detected in M 31. Here we focus on CXOM31 J004253.1+411422, the brightness of which suggests that it belongs to the class of ul…
Threshold-Aligned Pygmy Dipole Strength in Astrophysical and Reactions
T. Ghosh, A. Kaur, N. Paar
Reaction-rate calculations relevant to r-process nucleosynthesis depend sensitively on the nuclear -strength function (SF). Here we investigate the impact of low-lying pygm…