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Related papers: Serendipitous Science from the K2 Mission

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With the loss of a second reaction wheel, resulting in the inability to point continuously and stably at the same field of view, the NASA Kepler satellite recently entered a new mode of observation known as the K2 mission. The data from…

Solar and Stellar Astrophysics · Physics 2015-06-11 Mikkel N. Lund , Rasmus Handberg , Guy R. Davies , William J. Chaplin , Caitlin D. Jones

The K2 mission will make use of the Kepler spacecraft and its assets to expand upon Kepler's groundbreaking discoveries in the fields of exoplanets and astrophysics through new and exciting observations. K2 will use an innovative way of…

Context: After the loss of a second reaction wheel the Kepler mission was redesigned as the K2 mission, pointing towards the ecliptic and delivering data for new fields approximately every 80 days. The steady flow of data obtained with a…

Solar and Stellar Astrophysics · Physics 2016-12-21 R. Handberg , M. N. Lund

High-precision time series photometry with the Kepler satellite has been crucial to our understanding both of exoplanets, and via asteroseismology, of stellar physics. After the failure of two reaction wheels, the Kepler satellite has been…

Instrumentation and Methods for Astrophysics · Physics 2015-10-28 Benjamin Pope , Timothy White , Daniel Huber , Simon Murphy , Tim Bedding , Douglas Caldwell , Aleksa Sarai , Suzanne Aigrain , Thomas Barclay

After the failure of two reaction wheels and the end of its original mission, the Kepler spacecraft has begun observing stars in new fields along the ecliptic plane in its extended K2 mission. Although K2 promises to deliver high precision…

Instrumentation and Methods for Astrophysics · Physics 2014-12-08 Andrew Vanderburg

The recently approved NASA K2 mission has the potential to multiply by an order of magnitude the number of short-period transiting planets found by Kepler around bright and low-mass stars, and to revolutionise our understanding of stellar…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 Suzanne Aigrain , Simon T. Hodgkin , Michael J. Irwin , Jim R. Lewis , Stephen J. Roberts

The original Kepler mission achieved high photometric precision thanks to ultra-stable pointing enabled by use of four reaction wheels. The loss of two of these reaction wheels reduced the telescope's ability to point precisely for extended…

Instrumentation and Methods for Astrophysics · Physics 2014-11-06 Andrew Vanderburg , John Asher Johnson

In its Campaign 9, K2 observed dense regions toward the Galactic bulge in order to constrain the microlensing parallaxes and probe for free-floating planets. Photometric reduction of the \emph{K2} bulge data poses a significant challenge…

Instrumentation and Methods for Astrophysics · Physics 2019-07-15 R. Poleski , M. Penny , B. S. Gaudi , A. Udalski , C. Ranc , G. Barentsen , A. Gould

The two reaction wheel K2 mission promises and has delivered new discoveries in the stellar and exoplanet fields. However, due to the loss of accurate pointing, it also brings new challenges for the data reduction processes. In this paper,…

Earth and Planetary Astrophysics · Physics 2015-11-04 Chelsea X. Huang , K. Penev , J. D. Hartman , G. Á. Bakos , W. Bhatti , I. Domsa , M. de Val-Borro

Proper photometric data are challenging to obtain in the K2 mission of the Kepler space telescope due to strong systematics caused by the two-wheel-mode operation. It is especially true for variable stars wherein physical phenomena occur on…

Instrumentation and Methods for Astrophysics · Physics 2022-02-09 Attila Bódi , Pál Szabó , Emese Plachy , László Molnár , Róbert Szabó

Over 2500 eclipsing binaries were identified and characterized from the ultra-precise photometric data provided by the Kepler space telescope. Kepler is now beginning its second mission, K2, which is proving to again provide ultra-precise…

The photometric precision, monitoring baselines, and rapid, even sampling rates required by modern satellites designed for detecting the signal of transiting exoplanets are ideally suited to a large number of applications in high-energy…

Instrumentation and Methods for Astrophysics · Physics 2019-04-22 Krista Lynne Smith

The K2 mission of the Kepler Space Telescope offers a unique possibility to examine sources of both Galactic and Extra-galactic origin with high cadence photometry. Alongside the multitude of supernovae and quasars detected within targeted…

Instrumentation and Methods for Astrophysics · Physics 2020-08-12 R. Ridden-Harper , B. E. Tucker , M. Gully-Santiago , G. Barentsen , A. Rest , P. Garnavich , E. Shaya

NASA's K2 mission began observing fields along the ecliptic plane in 2014. Each observing campaign lasts approximately 80 days, during which high-precision optical photometry of select astrophysical targets is collected by the Kepler…

Solar and Stellar Astrophysics · Physics 2017-12-07 Knicole D. Colón , Steve B. Howell , David R. Ciardi , Thomas Barclay

K2 is the mission concept for a repurposed Kepler mission that uses two reaction wheels to maintain the satellite attitude and provide ~85 days of coverage for ten 105-deg^2 fields along the ecliptic in the first 2.5 years of operation. We…

Solar and Stellar Astrophysics · Physics 2015-06-19 A. Prsa , A. Robin , T. Barclay

We present the first short-duration candidate microlensing events from the Kepler K2 mission. From late April to early July 2016, Campaign 9 of K2 obtained high temporal cadence observations over a 3.7 square degree region of the Galactic…

Earth and Planetary Astrophysics · Physics 2021-07-07 I. McDonald , E. Kerins , R. Poleski , M. T. Penny , D. Specht , S. Mao , P. Fouqué , W. Zhu , W. Zang

We present K2SC (K2 Systematics Correction), a Python pipeline to model instrumental systematics and astrophysical variability in light curves from the K2 mission. K2SC uses Gaussian process regression to model position-dependent…

Solar and Stellar Astrophysics · Physics 2016-04-27 Suzanne Aigrain , Hannu Parviainen , Benjamin Pope

Motivated by the Kepler K2 time series of Titan, we present an aperture optimization technique for extracting photometry of saturated moving targets with high temporally- and spatially-varying backgrounds. Our approach uses $k$-means…

Earth and Planetary Astrophysics · Physics 2019-07-24 Alex H. Parker , Sarah M. Hörst , Erin L. Ryan , Carly J. A Howett

Kepler, K2, TESS, and similar time-domain photometric projects, while designed with exoplanet detection in mind, are also well-suited projects for searches for large artificial structures orbiting other stars in the Galaxy. An effort to…

Instrumentation and Methods for Astrophysics · Physics 2019-07-19 Jason T. Wright , David Kipping

The K2 Mission uses the Kepler spacecraft to obtain high-precision photometry over ~80 day campaigns in the ecliptic plane. The Ecliptic Plane Input Catalog (EPIC) provides coordinates, photometry and kinematics based on a federation of…

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