809 citations · 28.2k across the 927 of their papers we have counts for
52 papers · 1 filter
New Near-Infrared light-curve templates for RR Lyrae variables
V. F. Braga, P. B. Stetson, G. Bono +34
We provide homogeneous optical (UBVRI) and near-infrared (JHK) time series photometry for 254 cluster (omega Cen, M4) and field RR Lyrae (RRL) variables. We ended up with more than…
H/HD molecular data for analysis of quasar spectra in search of varying constants
W. Ubachs, E. J. Salumbides, M. T. Murphy +2
Absorption lines of H and HD molecules observed at high redshift in the line of sight towards quasars are a test ground to search for variation of the proton-to-electron mass r…
Burst occurrence in young massive stellar objects
Meyer D. M. -A., Vorobyov E. I., Elbakyan V. G. +3
Episodic accretion-driven outbursts are an extreme manifestation of accretion variability. It has been proposed that the development of gravitational instabilities in the proto-cir…
The host galaxies of luminous type 2 AGN at 0.3-0.4
J. J. Urbano-Mayorgas, M. Villar Martín, F. Buitrago +7
We study the morphological and structural properties of the host galaxies associated with 57 optically-selected luminous type 2 AGN at 0.3-0.4: 16 high-luminosity Seyfert 2…
Exchange dependent ultrafast magnetization dynamics in FeNi alloys
Somnath Jana, Ronny Knut, Erna K. Delczeg-Czirjak +13
Element specific ultrafast demagnetization was studied in FeNi alloys, covering the concentration range between . For all compositions, we observe a delay…
Inhomogeneous magnon scattering during ultrafast demagnetization
R. Knut, E. K. Delczeg-Czirjak, S. Jana +20
NiFe (Py) and Py alloyed with Cu exhibit intriguing ultrafast demagnetization behavior, where the Ni magnetic moment shows a delayed response relative to the Fe, an…
Testing a reported correlation between arrival directions of ultrahigh-energy cosmic rays and a flux pattern from nearby starburst galaxies using Telescope Array data
Telescope Array Collaboration, R. U. Abbasi, M. Abe +138
The Pierre Auger Collaboration (Auger) recently reported a correlation between the arrival directions of cosmic rays with energies above 39 EeV and the flux pattern of 23 nearby st…
Periastron Observations of TeV Gamma-Ray Emission from a Binary System with a 50-year Period
The VERITAS Collaboration, A. U. Abeysekara, W. Benbow +212
We report on observations of the pulsar / Be star binary system PSR J2032+4127 / MT91 213 in the energy range between 100 GeV and 20 TeV with the VERITAS and MAGIC imaging atmosphe…
Local disc model in view of Gaia DR1 and RAVE data
K. Sysoliatina, A. Just, I. Koutsouridou +8
We test the performance of the semi-analytic self-consistent Just-Jahreiß disc model (JJ model) with the astrometric data from the Tycho-Gaia Astrometric Solution (TGAS) sub-catalo…
A new beamline for laser spin-polarization at ISOLDE
W. Gins, R. D. Harding, M. Baranowski +11
A beamline dedicated to the production of laser-polarized radioactive beams has been constructed at ISOLDE, CERN. We present here different simulations leading to the design and co…
Solar flares and Kelvin-Helmholtz instabilities: A parameter survey
Wenzhi Ruan, Chun Xia, Rony Keppens
Hard X-ray (HXR) sources are frequently observed near the top of solar flare loops, and the emission is widely ascribed to bremsstrahlung. We here revisit an alternative scenario w…
LOFAR discovery of a 23.5-second radio pulsar
C. M. Tan, C. G. Bassa, S. Cooper +16
We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR…
The 1989 and 2015 outbursts of V404 Cygni: a global study of wind-related optical features
D. Mata Sánchez, T. Muñoz-Darias, J. Casares +19
The black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained high time resolution…
The first power spectrum limit on the 21-cm signal of neutral hydrogen during the Cosmic Dawn at z=20-25 from LOFAR
B. K. Gehlot, F. G. Mertens, L. V. E. Koopmans +19
Observations of the redshifted 21-cm hyperfine line of neutral hydrogen from early phases of the Universe such as Cosmic Dawn and the Epoch of Reionization promise to open a new wi…
The faint end of the Centaurus A satellite luminosity function
D. Crnojević, D. J. Sand, P. N. Bennet +9
The Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) is constructing a wide-field map of the resolved stellar populations in the extended halos of these two nearby, prom…
Structure and kinematics of Type II Cepheids in the Galactic bulge based on near-infrared VVV data
V. F. Braga, A. Bhardwaj, R. Contreras Ramos +5
Type II Cepheids (T2Cs) are radially pulsating variables that trace old stellar populations and provide distance estimates through their period-luminosity (PL) relation. We trace t…
Measurement of Cosmic-ray Electrons at TeV Energies by VERITAS
VERITAS Collaboration, A. Archer, W. Benbow +58
Cosmic-ray electrons and positrons (CREs) at GeV-TeV energies are a unique probe of our local Galactic neighborhood. CREs lose energy rapidly via synchrotron radiation and inverse-…
AKARI mid-infrared slitless spectroscopic survey of star-forming galaxies at
Y. Ohyama, T. Wada, H. Matsuhara +24
Deep MIR surveys have revealed numerous strongly star-forming galaxies at redshift z~<2. Their MIR fluxes are produced by a combination of continuum and PAH emission features. The…
The extreme HBL behaviour of Markarian 501 during 2012
M. L. Ahnen, S. Ansoldi, L. A. Antonelli +276
A multiwavelength campaign was organized to take place between March and July of 2012. Excellent temporal coverage was obtained with more than 25 instruments, including the MAGIC,…
Discovery of synchronous X-ray and radio moding of PSR B0823+26
W. Hermsen, L. Kuiper, R. Basu +10
Simultaneous observations of PSR B0823+26 with ESA's XMM-Newton, the Giant Metrewave Radio Telescope and international stations of the Low Frequency Array revealed synchronous X-ra…
FAMU: study of the energy dependent transfer rate
FAMU Collaboration, E. Mocchiutti, V. Bonvicini +53
The main goal of the FAMU experiment is the measurement of the hyperfine splitting (hfs) in the 1S state of muonic hydrogen . The physical process behind this exp…
Reliable detection and characterization of low-frequency polarized sources in the LOFAR M51 field
A. Neld, C. Horellou, D. D. Mulcahy +14
The new generation of broad-band radio continuum surveys will provide large data sets with polarization information. New algorithms need to be developed to extract reliable catalog…
Magnetic Properties of the low dimensional BaMSiO(M= Cu, Co, Mn) system
G. H. Wang, C. Y. Xu, H. B. Cao +8
We performed susceptibility, magnetization, specific heat, and single crystal neutron diffraction measurements on single crystalline BaMnSiO. Based on the results, we r…
The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma rays
MAGIC Collaboration, S. Ansoldi, L. A. Antonelli +163
The MAGIC telescopes observed S2 0109+22 in 2015 July during its flaring activity in high energy gamma rays observed by Fermi-LAT. We analyse the MAGIC data to characterise the ver…