Calibration of the Advanced LIGO detectors for the discovery of the binary...
In Advanced LIGO, detection and astrophysical source parameter estimation of the binary black hole merger GW150914 requires a calibrated estimate of the gravitational-wave strain sensed by the...
View ArticleCharacterization of transient noise in Advanced LIGO relevant to...
On September 14, 2015, a gravitational wave signal from a coalescing black hole binary system was observed by the Advanced LIGO detectors. This paper describes the transient noise backgrounds used to...
View ArticleObserving gravitational-wave transient GW150914 with minimal assumptions...
The gravitational-wave signal GW150914 was first identified on Sept 14 2015 by searches for short-duration gravitational-wave transients. These searches identify time-correlated transients in multiple...
View ArticleGW150914: First results from the search for binary black hole coalescence...
On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) simultaneously observed the binary black hole merger GW150914. We report the...
View ArticleGW150914: The Advanced LIGO Detectors in the Era of First Discoveries...
Following a major upgrade, the two advanced detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) held their first observation run between September 2015 and January 2016. With a...
View ArticleThe International Pulsar Timing Array: First Data Release
The highly stable spin of neutron stars can be exploited for a variety of (astro-)physical investigations. In particular arrays of pulsars with rotational periods of the order of milliseconds can be...
View ArticleCalibration of the Advanced LIGO detectors for the discovery of the binary...
In Advanced LIGO, detection and astrophysical source parameter estimation of the binary black hole merger GW150914 requires a calibrated estimate of the gravitational-wave strain sensed by the...
View ArticleCharacterization of transient noise in Advanced LIGO relevant to...
On September 14, 2015, a gravitational wave signal from a coalescing black hole binary system was observed by the Advanced LIGO detectors. This paper describes the transient noise backgrounds used to...
View ArticleObserving gravitational-wave transient GW150914 with minimal assumptions
The gravitational-wave signal GW150914 was first identified on Sept 14 2015 by searches for short-duration gravitational-wave transients. These searches identify time-correlated transients in multiple...
View ArticleGW150914: First results from the search for binary black hole coalescence...
On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) simultaneously observed the binary black hole merger GW150914. We report the...
View ArticleGW150914: The Advanced LIGO Detectors in the Era of First Discoveries
Following a major upgrade, the two advanced detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) held their first observation run between September 2015 and January 2016. With a...
View ArticleScience Learning via Participation in Online Citizen Science
We investigate the development of scientific content knowledge of volunteers participating in online citizen science projects in the Zooniverse (www.zooniverse.org), including the astronomy projects...
View Article70 years of Sunspot Observations at Kanzelh\"ohe Observatory: systematic...
Kanzelh\"ohe Observatory (KSO) was founded during World War II by the "Deutsche Luftwaffe" (German Airforces) as one station of a network of observatories, which should provide information on solar...
View ArticleDesigns for a large-aperture telescope to map the CMB 10X faster [Replacement]
Current large-aperture cosmic microwave background (CMB) telescopes have nearly maximized the number of detectors that can be illuminated while maintaining diffraction-limited image quality. The...
View ArticleGeometry-Independent Determination of Radial Density Distributions in...
We present a geometry-independent method for determining the shapes of radial volume density profiles of astronomical objects whose geometries are unknown, based on a single column density map. Such...
View ArticleBalloon Flight Test of a Compton Telescope Based on Scintillators with...
We present the results of the first high-altitude balloon flight test of a concept for an advanced Compton telescope making use of modern scintillator materials with silicon photomultiplier (SiPM)...
View ArticleLimits on Fast Radio Bursts and other transient sources at 182 MHz using the...
We present a survey for transient and variable sources, on timescales from 28 seconds to $\sim$1 year, using the Murchison Widefield Array (MWA) at 182 MHz. Down to a detection threshold of 0.285 Jy,...
View ArticleDetecting the cosmic web with radio surveys
We study the challenges to detect the cosmic web at radio wavelengths with state-of-the-art cosmological simulations of extragalactic magnetic fields. The incoming generation of radio surveys operating...
View ArticleCalibration of the EDGES Receiver to Observe the Global 21-cm Signature from...
The EDGES experiment strives to detect the the sky-average brightness temperature from the $21$-cm line emitted during the Epoch of Reionization (EoR) in the redshift range $14 \gtrsim z \gtrsim 6$. To...
View ArticleZAP — Enhanced PCA Sky Subtraction for Integral Field Spectroscopy
We introduce Zurich Atmosphere Purge (ZAP), an approach to sky subtraction based on principal component analysis (PCA) that we have developed for the Multi Unit Spectrographic Explorer (MUSE) integral...
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