Outputs (13)

A Systematic Search for Periodically Varying Quasars in Pan-STARRS1: An Extended Baseline Test in Medium Deep Survey Field MD09 (2016)
Journal Article
Liu, T., Gezari, S., Burgett, W., Chambers, K., Draper, P., Hodapp, K., …Waters, C. (2016). A Systematic Search for Periodically Varying Quasars in Pan-STARRS1: An Extended Baseline Test in Medium Deep Survey Field MD09. Astrophysical Journal, 833(1), Article 6. https://doi.org/10.3847/0004-637x/833/1/6

We present a systematic search for periodically varying quasars and supermassive black hole binary (SMBHB) candidates in the Pan-STARRS1 (PS1) Medium Deep Survey's MD09 field. From a color-selected sample of 670 quasars extracted from a multi-band de... Read More about A Systematic Search for Periodically Varying Quasars in Pan-STARRS1: An Extended Baseline Test in Medium Deep Survey Field MD09.

Hiding in plain sight – recovering clusters of galaxies with the strongest AGN in their cores (2016)
Journal Article
Green, T., Edge, A., Ebeling, H., Burgett, W., Draper, P., Kaiser, N., …Waters, C. (2017). Hiding in plain sight – recovering clusters of galaxies with the strongest AGN in their cores. Monthly Notices of the Royal Astronomical Society, 465(4), 4872-4885. https://doi.org/10.1093/mnras/stw3059

A key challenge in understanding the feedback mechanism of active galactic nucleus (AGN) in Brightest Cluster Galaxies (BCGs) is the inherent rarity of catching an AGN during its strong outburst phase. This is exacerbated by the ambiguity of differen... Read More about Hiding in plain sight – recovering clusters of galaxies with the strongest AGN in their cores.

The Pan-STARRS1 Distant z > 5.6 Quasar Survey: More than 100 Quasars within the First Gyr of the Universe (2016)
Journal Article
Bañados, E., Venemans, B., Decarli, R., Farina, E., Mazzucchelli, C., Walter, F., …Yang, Q. (2016). The Pan-STARRS1 Distant z > 5.6 Quasar Survey: More than 100 Quasars within the First Gyr of the Universe. Astrophysical Journal Supplement, 227(1), Article 11. https://doi.org/10.3847/0067-0049/227/1/11

Luminous quasars at $z\gt 5.6$ can be studied in detail with the current generation of telescopes and provide us with unique information on the first gigayear of the universe. Thus far, these studies have been statistically limited by the number of q... Read More about The Pan-STARRS1 Distant z > 5.6 Quasar Survey: More than 100 Quasars within the First Gyr of the Universe.

PS1-14bj: A Hydrogen-poor Superluminous Supernova With a Long Rise and Slow Decay (2016)
Journal Article
Lunnan, R., Chornock, R., Berger, E., Milisavljevic, D., Jones, D., Rest, A., …Waters, C. (2016). PS1-14bj: A Hydrogen-poor Superluminous Supernova With a Long Rise and Slow Decay. Astrophysical Journal, 831(2), Article 144. https://doi.org/10.3847/0004-637x/831/2/144

We present photometry and spectroscopy of PS1-14bj, a hydrogen-poor superluminous supernova (SLSN) at redshift z = 0.5215 discovered in the last months of the Pan-STARRS1 Medium Deep Survey. PS1-14bj stands out because of its extremely slow evolution... Read More about PS1-14bj: A Hydrogen-poor Superluminous Supernova With a Long Rise and Slow Decay.

A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey (2016)
Journal Article
Bernard, E., Ferguson, A., Schlafly, E., Martin, N., Rix, H., Bell, E., …Waters, C. (2016). A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey. Monthly Notices of the Royal Astronomical Society, 463(2), 1759-1768. https://doi.org/10.1093/mnras/stw2134

We present a panoramic map of the entire Milky Way halo north of δ∼−30∘δ∼−30∘ (∼30 000 deg2), constructed by applying the matched-filter technique to the Pan-STARRS1 3π Survey data set. Using single-epoch photometry reaching to g ∼22, we are sensitiv... Read More about A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey.

Slow-blue nuclear hypervariables in PanSTARRS-1 (2016)
Journal Article
Lawrence, A., Bruce, A., MacLeod, C., Gezari, S., Elvis, M., Ward, M., …Soderberg, A. (2016). Slow-blue nuclear hypervariables in PanSTARRS-1. Monthly Notices of the Royal Astronomical Society, 463(1), 296-331. https://doi.org/10.1093/mnras/stw1963

We discuss 76 large amplitude transients (Δm > 1.5) occurring in the nuclei of galaxies, nearly all with no previously known active galactic nucleus (AGN). They have been discovered as part of the Pan-STARRS1 (PS1) 3π survey, by comparison with Sloan... Read More about Slow-blue nuclear hypervariables in PanSTARRS-1.

Mapping the Monoceros Ring in 3D with Pan-STARRS1 (2016)
Journal Article
Morganson, E., Conn, B., Rix, H., Bell, E., Burgett, W., Chambers, K., …Waters, C. (2016). Mapping the Monoceros Ring in 3D with Pan-STARRS1. Astrophysical Journal, 825(2), Article 140. https://doi.org/10.3847/0004-637x/825/2/140

Using the Pan-STARRS1 survey, we derive limiting magnitude, spatial completeness, and density maps that we use to probe the three-dimensional structure and estimate the stellar mass of the so-called Monoceros Ring. The Monoceros Ring is an enormous a... Read More about Mapping the Monoceros Ring in 3D with Pan-STARRS1.

Hypercalibration: A Pan-STARRS1-based Recalibration of the Sloan Digital Sky Survey Photometry (2016)
Journal Article
Finkbeiner, D., Schlafly, E., Schlegel, D., Padmanabhan, N., Jurić, M., Burgett, W., …Tonry, J. (2016). Hypercalibration: A Pan-STARRS1-based Recalibration of the Sloan Digital Sky Survey Photometry. Astrophysical Journal, 822(2), Article 66. https://doi.org/10.3847/0004-637x/822/2/66

We present a recalibration of the Sloan Digital Sky Survey (SDSS) photometry with new flat fields and zero points derived from Pan-STARRS1. Using point-spread function (PSF) photometry of 60 million stars with 16 < r < 20, we derive a model of amplif... Read More about Hypercalibration: A Pan-STARRS1-based Recalibration of the Sloan Digital Sky Survey Photometry.

Of Genes and Machines: Application of a Combination of Machine Learning Tools to Astronomy Data Sets (2016)
Journal Article
Heinis, S., Kumar, S., Gezari, S., Burgett, W., Chambers, K., Draper, P., …Waters, C. (2016). Of Genes and Machines: Application of a Combination of Machine Learning Tools to Astronomy Data Sets. Astrophysical Journal, 821(2), Article 86. https://doi.org/10.3847/0004-637x/821/2/86

We apply a combination of genetic algorithm (GA) and support vector machine (SVM) machine learning algorithms to solve two important problems faced by the astronomical community: star–galaxy separation and photometric redshift estimation of galaxies... Read More about Of Genes and Machines: Application of a Combination of Machine Learning Tools to Astronomy Data Sets.

The Optical-infrared Extinction Curve and Its Variation in the Milky Way (2016)
Journal Article
Schlafly, E., Meisner, A., Stutz, A., Kainulainen, J., Peek, J., Tchernyshyov, K., …Waters, C. (2016). The Optical-infrared Extinction Curve and Its Variation in the Milky Way. Astrophysical Journal, 821(2), Article 78. https://doi.org/10.3847/0004-637x/821/2/78

The dust extinction curve is a critical component of many observational programs and an important diagnostic of the physics of the interstellar medium. Here we present new measurements of the dust extinction curve and its variation toward tens of tho... Read More about The Optical-infrared Extinction Curve and Its Variation in the Milky Way.

The 2QDES Pilot : The luminosity and redshift dependence of quasar clustering (2016)
Journal Article
Chehade, B., Shanks, T., Findlay, J., Metcalfe, N., Sawangwit, U., Irwin, M., …Bielby, R. (2016). The 2QDES Pilot : The luminosity and redshift dependence of quasar clustering. Monthly Notices of the Royal Astronomical Society, 459(2), 1179-1200. https://doi.org/10.1093/mnras/stw616

We present a new redshift survey, the 2dF Quasar Dark Energy Survey pilot (2QDESp), which consists of ≈10 000 quasars from ≈150 deg2 of the southern sky, based on VST-ATLAS imaging and 2dF/AAOmega spectroscopy. Combining our optical photometry with t... Read More about The 2QDES Pilot : The luminosity and redshift dependence of quasar clustering.

Pan-Planets: Searching for hot Jupiters around cool dwarfs (2016)
Journal Article
Obermeier, C., Koppenhoefer, J., Saglia, R., Henning, T., Bender, R., Kodric, M., …Waters, C. (2016). Pan-Planets: Searching for hot Jupiters around cool dwarfs. Astronomy & Astrophysics, 587, Article A49. https://doi.org/10.1051/0004-6361/201527633

The Pan-Planets survey observed an area of 42 sq deg. in the galactic disk for about 165 h. The main scientific goal of the project is the detection of transiting planets around M dwarfs. We establish an efficient procedure for determining the stella... Read More about Pan-Planets: Searching for hot Jupiters around cool dwarfs.

Finding, Characterizing, and Classifying Variable Sources in Multi-epoch Sky Surveys: QSOs and RR Lyrae in PS1 3π data (2016)
Journal Article
Hernitschek, N., Schlafly, E., Sesar, B., Rix, H., Hogg, D., Ivezić, Ž., …Waters, C. (2016). Finding, Characterizing, and Classifying Variable Sources in Multi-epoch Sky Surveys: QSOs and RR Lyrae in PS1 3π data. Astrophysical Journal, 817(1), Article 73. https://doi.org/10.3847/0004-637x/817/1/73

In area and depth, the Pan-STARRS1 (PS1) 3π survey is unique among many-epoch, multi-band surveys and has enormous potential for the all-sky identification of variable sources. PS1 has observed the sky typically seven times in each of its five bands... Read More about Finding, Characterizing, and Classifying Variable Sources in Multi-epoch Sky Surveys: QSOs and RR Lyrae in PS1 3π data.