Search Publications
Missions
Journals
Publication Years
LAMOST J2043+3413-a Fast Disk Precession SW Sextans Candidate in Period Gap
Wang, Xiaofeng; Liu, Jiren; Sun, Yongkang +5 more
We present follow-up photometric observations and time-series analysis of a nova-like, SW Sextans-type, cataclysmic variable (CV) candidate, LAMOST J204305.95+341340.6 (hereafter J2043+3413), with a Gaia G-band magnitude of 15.30 and a distance of 990 pc, which was identified from the LAMOST spectrum. The photometric data were collected with the T…
Photometric long-term variations of dwarf novae during quiescence
Vogt, N.; Vega-Manubens, I.
Using the Catalina Sky Survey and Gaia alert data bases, we have carried out a systematic search for long-term variability of the brightness of dwarf novae in quiescence. A small, but significant portion of them revealed variability on time-scales between 2 and 14 yr which can be fitted, in some of the targets, by linear slopes of 0.14 mag yr…
The radiometric environment for Mars limb observations by the Mars Sample Return Earth Return Orbiter
Montmessin, Franck; Titov, Dmitri; Wolff, Michael J. +17 more
After launching from the martian surface via the Mars Ascent Vehicle (MAV), the MAV and the Orbiting Sample (OS) capsule containing the samples collected on Mars by the Perseverance rover are to be identified by the Narrow Angle Camera (NAC) on the Earth Return Orbiter (ERO) spacecraft in order to determine the exact orbit of the capsule before re…
Data processing pipeline for multiple-exposure photo-plate digital archives
Yu, Yong; Jia, Peng; Yang, Zhimin +2 more
Photo-plates are an invaluable historical legacy that have been used for over a hundred years to capture images of celestial objects. By digitizing these photo-plates and processing the images with digital image processing methods, scientists can study celestial objects that exhibit temporal variations. Multiple-exposure photo-plates are a unique …
ALMA Observations of the Extraordinary Carina Pillars: A Complementary Sample
Reiter, Megan; Zapata, Luis A.; Takahashi, Satoko +3 more
We present a study of six dusty and gaseous pillars (containing the Herbig-Haro (HH) objects HH 1004 and HH 1010) and globules (that contain the HH 666, HH 900, HH 1006, and HH 1066 objects) localized in the Carina Nebula using sensitive and high-angular-resolution (~0.″3) Atacama Large Millimeter/submillimeter Array observations. This is a more e…
Spectrally dispersed kernel phase interferometry with SCExAO/CHARIS: proof of concept and calibration strategies
Martinache, Frantz; Chaushev, Alexander; Sallum, Steph +7 more
Kernel phase interferometry (KPI) is a data processing technique that allows for the detection of asymmetries (such as companions or disks) in high-Strehl images, close to and within the classical diffraction limit. We show that KPI can successfully be applied to hyperspectral image cubes generated from integral field spectrographs (IFSs). We demo…
Unravelling optical and X-ray properties of the disc-dominated intermediate polar IGR J15094-6649
Pandey, J. C.; Scaringi, Simone; Schwope, Axel +5 more
We present analyses of an Intermediate Polar, IGR J15094-6649, based on the archival optical data obtained from the Transiting Exoplanet Survey Satellite (TESS) and X-ray data obtained from the Suzaku, NuSTAR, and Neil Gehrels Swift Observatory (Swift). Present analysis confirms and refines the previously reported spin period of IGR J15094-6649 as…
A three-dimensional chemical simulation with irregular density distributions of L1544
Mardones, Diego; Ge, Jixing; Inostroza-Pino, Natalia +1 more
The dust continuum and molecular distributions observed on the sky plane always show irregular shapes of molecular clouds. However, it is hard to directly reproduce the observed distributions using symmetrical models. In this work, for the first time, we present a three-dimensional (3D) gas-grain chemical simulation using an irregular 3D density s…
KIC 9028474: A Long-period Eclipsing Binary on a Highly Eccentric Orbit
Özdarcan, Orkun
We present a comprehensive analysis of a very long-period (124.93669 days) eclipsing binary KIC 9028474, which is composed of F9V+G1V components on a highly eccentric (e = 0.82029) orbit. Masses and radii of the primary and the secondary components are M 1 = 1.18 ± 0.04 M ⊙, M 2 = 1.04 ± 0.03 M ⊙, R
The astrophysical parameters of Majaess‑95 and Majaess‑225
Tadross, A. L.
Most astrophysical parameters of the two stellar clusters Majaess 95 and Majaess 225 have been investigated here for the first time using the third data release of the Gaia space mission (Gaia‑DR3). The membership probabilities of stars were assigned using the pyUPMASK algorithm. The parallaxes offset has been corrected using the zero‑point correc…