Search Publications
The Araucaria Project: Deep Near-infrared Photometric Maps of Local and Sculptor Group Galaxies. I. Carina, Fornax, and Sculptor
Gieren, Wolfgang; Pietrzyński, Grzegorz; Pilecki, Bogumił +12 more
Deep near-infrared (NIR) J- and K-band photometry of three Local Group dwarf spheroidal galaxies—Fornax, Carina, and Sculptor—is made available for the community. Until now, these data have only been used by the Araucaria Project to determine distances using the tip of the red giant branch and RR Lyrae stars. Now, we present the entire data collec…
Using CME Progenitors to Assess CME Geoeffectiveness
Martens, Petrus; Aparna, V.; Mundra, Kashvi
There have been a few previous studies claiming that the effects of geomagnetic storms strongly depend on the orientation of the magnetic cloud portion of coronal mass ejections (CMEs). Aparna & Martens, using halo-CME data from 2007 to 2017, showed that the magnetic field orientation of filaments at the location where CMEs originate on the Su…
MG1-688432: A Peculiar Variable System
Corbally, Christopher J.; Kraus, Adam L.; Tucker, Roy A. +3 more
The short-period variable star MG1-688432 has been discovered to exhibit occasional extremely high energy optical outbursts as high as 1038 erg. Outbursts are typically several hours in duration. These events are often highly structured, resembling sequential associated releases of energy. Twenty years of time sequence photometry are pr…
Erratum: "Cassini Composite Infrared Spectrometer (CIRS) Observations of Titan 2004-2017" (2019, ApJS, 244, 14)
Bézard, Bruno; Vinatier, Sandrine; Lellouch, Emmanuel +16 more
The Pan-STARRS1 Database and Data Products
Price, P. A.; Rest, A.; Saglia, R. P. +36 more
This paper describes the organization of the database and the catalog data products from the Pan-STARRS1 3π Steradian Survey. The catalog data products are available in the form of an SQL-based relational database from MAST, the Mikulski Archive for Space Telescopes at STScI. The database is described in detail, including the construction of the d…
The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release
Brandt, W. N.; Pâris, Isabelle; Petitjean, Patrick +34 more
We present the final Sloan Digital Sky Survey IV (SDSS-IV) quasar catalog from Data Release 16 of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). This catalog comprises the largest selection of spectroscopically confirmed quasars to date. The full catalog includes two subcatalogs (the current versions are DR16Q_v4 and DR16Q_Superset_…
Pan-STARRS Photometric and Astrometric Calibration
Price, P. A.; Chambers, K. C.; Stubbs, C. W. +20 more
We present the details of the photometric and astrometric calibration of the Pan-STARRS1 3π Survey. The photometric goals were to reduce the systematic effects introduced by the camera and detectors, and to place all of the observations onto a photometric system with consistent zero-points over the entire area surveyed, the ≈30,000 deg2…
The Zwicky Transient Facility Catalog of Periodic Variable Stars
Tian, Hao; Yang, Ming; Wang, Shu +3 more
The number of known periodic variables has grown rapidly in recent years. Thanks to its large field of view and faint limiting magnitude, the Zwicky Transient Facility (ZTF) offers a unique opportunity to detect variable stars in the northern sky. Here, we exploit ZTF Data Release 2 (DR2) to search for and classify variables down to r ∼ 20.6 mag. …
The SPTpol Extended Cluster Survey
Sharon, K.; Gladders, M. D.; Ade, P. A. R. +135 more
We describe the observations and resultant galaxy cluster catalog from the 2770 deg2 SPTpol Extended Cluster Survey (SPT-ECS). Clusters are identified via the Sunyaev-Zel'dovich (SZ) effect and confirmed with a combination of archival and targeted follow-up data, making particular use of data from the Dark Energy Survey (DES). With inco…
2SXPS: An Improved and Expanded Swift X-Ray Telescope Point-source Catalog
Cenko, S. B.; Tagliaferri, G.; Kennea, J. A. +8 more
We present the 2SXPS (Swift-XRT Point Source) catalog, containing 206,335 point sources detected by the Swift X-ray Telescope (XRT) in the 0.3-10 keV energy range. This catalog represents a significant improvement over 1SXPS, with double the sky coverage (now 3790 deg2), and several significant developments in source detection and class…