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We present an update on the SCI-HI experiment, which is designed to measure the all-sky (global) 21 cm brightness temperature during the end of the Dark Ages. Results from preliminary observations in June 2013 are discussed, along with…

Instrumentation and Methods for Astrophysics · Physics 2014-09-10 Jeffrey B. Peterson , Tabitha C. Voytek , Aravind Natarajan , Jose Miguel Jaregui Garcia , Omar Lopez-Cruz

Next year the second generation instrument SPHERE will begin science operations at the Very Large Telecope (ESO). This instrument will be dedicated to the search for exoplanets through the direct imaging techniques, with the new generation…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 A. Zurlo , A. Vigan , C. Moutou , D. Mesa , R. Gratton , M. Langlois , J. -L. Beuzit , A. Costille , S. Desidera , K. Dolhen , C. Gry , F. Madec , D. Le Mignant , D. Mouillet , J. -F. Sauvage

Intracavity absorption spectroscopy (ICAS) is a well-established technique for detecting weak absorption signals with ultrahigh sensitivity. Here, we extend this concept to magnetometry using nitrogen-vacancy (NV) centers in diamond. We…

Data collected during three years with a germanium spectrometer at the Sierra Grande underground laboratory have been analyzed for distinctive features of annual modulation of the signal induced by WIMP dark matter candidates. The main…

We report the latest results of 225 GHz atmospheric opacity measurements from two arctic sites; one on high coastal terrain near the Eureka weather station, on Ellesmere Island, Canada, and the other at the Summit Station near the peak of…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 S. Matsushita , M. -T. Chen , P. Martin-Cocher , K. Asada , C. -P. Chen , M. Inoue , S. Paine , D. Turner , E. Steinbring

$D^{*+/-}$ production in the diffractive interactions was measured with the ZEUS detector at HERA using integrated luminosities of 44 pb$^{-1}$ in deep inelastic scattering and 38 pb$^{-1}$ in photoproduction processes. Diffractive…

High Energy Physics - Experiment · Physics 2015-06-25 I. A. Korzhavina

The Probe far-Infrared Mission for Astrophysics (PRIMA) is a proposed space observatory which will use arrays of thousands of kinetic inductance detectors (KIDs) to perform low- and moderate-resolution spectroscopy throughout the…

State estimation is challenging for 3D object tracking with high maneuverability, as the target's state transition function changes rapidly, irregularly, and is unknown to the estimator. Existing work based on interacting multiple model…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Jirong Zha , Yuxuan Fan , Kai Li , Han Li , Chen Gao , Xinlei Chen , Yong Li

Infrared time-domain surveys remain significantly underdeveloped compared with their optical counterparts. We have developed the Antarctic Infrared Binocular Telescope (AIRBT) to study the dynamic infrared sky at Dome A, Antarctica, taking…

Instrumentation and Methods for Astrophysics · Physics 2025-10-17 Zhongnan Dong , Bin Ma , Haoran Zhang , Jinji Li , Xu Yang , Yi Hu , Zhaohui Shang , Michael C. B. Ashley

OSIRIS is a near-infrared integral field spectrograph operating behind the adaptive optics system at W. M. Keck Observatory. While OSIRIS has been a scientifically productive instrument to date, its sensitivity has been limited by a grating…

Instrumentation and Methods for Astrophysics · Physics 2018-02-14 Etsuko Mieda , Shelley A. Wright , James E. Larkin , James R. Graham , Sean M. Adkins , James E. Lyke , Randy D. Campbell , Jerome Maire , Tuan Do , Jacob Gordon

Microwave impedance microscopy (MIM) is a near-field imaging technique that has been used to visualize the local conductivity of materials with nanoscale resolution across the GHz regime. In recent years, MIM has shown great promise for the…

Applied Physics · Physics 2023-10-03 Leonard Weihao Cao , Chen Wu , Rajarshi Bhattacharyya , Ruolun Zhang , Monica T. Allen

We present a feasibility study exploring the implementation of optical interferometry and speckle techniques with the 1.3-m Devasthal Fast Optical Telescope (DFOT) at ARIES, which is currently dedicated to photometric observations. Using…

Instrumentation and Methods for Astrophysics · Physics 2026-02-16 Km Nitu Rai , Arjun Dawn , Neelam Panwar , Jeewan C Pandey , Subrata Sarangi , Prasenjit Saha

We developed a method to compute the temperature and density structure along the line of sight by inversion of the differential emission measure (DEM), under the assumptions of stratification and hydrostatic equilibrium. We applied this…

Solar and Stellar Astrophysics · Physics 2019-02-27 C. E. Alissandrakis , V. M. Bogod , T. I. Kaltman , S. Patsourakos , N. G. Peterova

The 21 cm intensity mapping (IM) technique provides us with an efficient way to observe the cosmic large-scale structure (LSS). From the LSS data, one can use the baryon acoustic oscillation and redshift space distortion to trace the…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-07 Peng-Ju Wu , Yichao Li , Jing-Fei Zhang , Xin Zhang

Time-series photometry taken from ground-based facilities is improved with the use of comparison stars due to the short timescales of atmospheric-induced variability. However, the sky is bright in the thermal infrared (3-5 um), and the…

Instrumentation and Methods for Astrophysics · Physics 2017-12-20 Eckhart Spalding , Phil Hinz , Andrew Skemer , John Hill , Vanessa P. Bailey , Amali Vaz

Determination of refractive index of micro-disks of a calcinated ($1100^\circ$C in air) photo-resist SZ2080$^\mathrm{TM}$ was carried out using transmission and reflection spectroscopy. Interference fringes at specific…

Preliminary simulation and optimization studies of the Directional Dark Matter Detector and the Directional Neutron Observer are presented. These studies show that the neutron interaction with the gas-target in these detectors is treated…

Instrumentation and Methods for Astrophysics · Physics 2015-05-30 I. Jaegle , H. Feng , S. Ross , J. Yamaoka , S. E. Vahsen

The MINOS long baseline experiment has been collecting neutrino beam data since March 2005 and has accumulated 3 x 10^{20} protons-on-target (POT) to date. MINOS uses Fermilab's NuMI neutrino beam which is measured by two steel-scintillator…

High Energy Physics - Experiment · Physics 2007-06-13 Tobias M. Raufer

Production of D*+/-(2010) mesons in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb^{-1}. Diffractive events were identified by the presence of a large rapidity…

High Energy Physics - Experiment · Physics 2008-11-26 ZEUS Collaboration , S. Chekanov