Projected Rotational Velocities for LAMOST Stars with Effective Temperatures Lower than 9000 K
The Astrophysical Journal Supplement SeriesIn Data Release 9 of LAMOST, we present measurements of v sin i for a total of 121,698 stars measured using the Medium Resolution Spectrograph (MRS) and 80,108 stars using the Low Resolution Spectrograph (LRS).
Fang Zuo +7 more
doaj +1 more source
Single-pulse Correlations in PSR B0329+54: Implications for Radio Emission Zones
The Astrophysical JournalIndividual radio pulses from a pulsar are directly linked to the underlying emission processes and the associated magnetic field geometry within its magnetosphere.
Shyam S. Sharma +5 more
doaj +1 more source
Singular spectrum analysis for the time-variable seasonal signals from GPS in Yunnan Province
Geodesy and GeodynamicsStudying the seasonal deformation in GPS time series is important to interpreting geophysical contributors and identifying unmodeled and mismodeled seasonal signals.
Weijie Tan +4 more
doaj +1 more source
On the efficiency of techniques for the reduction of impulsive noise in astronomical images [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 The impulsive noise in astronomical images originates from various sources. It develops as a result of thermal generation in pixels, collision of cosmic rays with image sensor or may be induced by high readout voltage in Electron Multiplying CCD (EMCCD).
Popowicz, A. +4 more
openaire +3 more sources
Observations of the Hydroxyl Radical in C/2013 US10 (Catalina) at 18 cm Wavelength
, 2017 The hydroxyl (OH) radical produced by photodissociation of water molecule is one of the most important indicators for cometary outgassing activity. The absorption lines of the OH radical at 1665 and 1667 MHz in the coma of comet C/2013 US10 Catalina were
Ip,Wing-Huen +10 more
core +1 more source
RVSNUpy: A Python Package for Spectroscopic Redshift Measurement Based on Cross Correlation
The Astronomical JournalWe introduce RVSNUpy , a new Python package designed to measure spectroscopic redshifts. Based on inverse-variance-weighted cross correlation, RVSNUpy determines redshifts by comparing observed spectra with various rest-frame template spectra.
Taewan Kim, Jubee Sohn, Ho Seong Hwang
doaj +1 more source
Digital Archive of the Astrograph Plates Stored at the Inasan Zvenigorod Observatory
Open Astronomy, 2012 The plate collection of the Zvenigorod 40-cm Carl Zeiss astrograph, obtained in 1972-2003, contains direct photographs of star fields, comets, asteroids, Pluto, and Mars. The electronic library of images from photographic plates was created from scanning
Vereshchagin S. V., Chupina N. V.
doaj +1 more source
VST processing facility: first astronomical applications [PDF]
VST–Tube is a new software package designed to process optical astronomical images. It is an automated pipeline to go from the raw exposures to fully calibrated co-added images, and to extract catalogs with aperture and PSF photometry.
Capaccioli, Massimo
core +2 more sources
Comparison of density estimation methods for astronomical datasets [PDF]
, 2011 Context. Galaxies are strongly influenced by their environment. Quantifying the galaxy density is a difficult but critical step in studying the properties of galaxies. Aims.
Buddelmeijer, H., +18 more
core +2 more sources
Characterizing the Instrumental Profile of LAMOST
The Astronomical JournalThe instrumental profile (IP) of a telescope is of great significance for spectroscopic analyses, especially for wavelength calibration and stellar parameter measurements. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) employs arc
Qian Liu +11 more
doaj +1 more source