An updated mass-radius analysis of the 2017-2018 NICER data set of PSR J0030+0451

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Serena Vinciguerra, Tuomo Salmi, Anna L. Watts, Devarshi Choudhury, Thomas E. Riley | Summary: In 2019 the NICER collaboration published the first mass and radius inferred for PSR J0030+0451, thanks to NICER observations, and consequent constraints on the equation of state characterising dense matter. Two independent analyses […]


Continue.. An updated mass-radius analysis of the 2017-2018 NICER data set of PSR J0030+0451

Detecting a long lived false vacuum with quantum quenches

Kavli Affiliate: Frank Wilczek | First 5 Authors: Gianluca Lagnese, Federica Maria Surace, Sid Morampudi, Frank Wilczek, | Summary: Distinguishing whether a system supports alternate low-energy (locally stable) states — stable (true vacuum) versus metastable (false vacuum) — by direct observation can be difficult when the lifetime of the state is very long but otherwise […]


Continue.. Detecting a long lived false vacuum with quantum quenches

Detecting a long lived false vacuum with quantum quenches

Kavli Affiliate: Frank Wilczek | First 5 Authors: Gianluca Lagnese, Federica Maria Surace, Sid Morampudi, Frank Wilczek, | Summary: Distinguishing whether a system supports alternate low-energy (locally stable) states — stable (true vacuum) versus metastable (false vacuum) — by direct observation can be difficult when the lifetime of the state is very long but otherwise […]


Continue.. Detecting a long lived false vacuum with quantum quenches

Detecting a long lived false vacuum with quantum quenches

Kavli Affiliate: Frank Wilczek | First 5 Authors: Gianluca Lagnese, Federica Maria Surace, Sid Morampudi, Frank Wilczek, | Summary: Distinguishing whether a system supports alternate low-energy (locally stable) states — stable (true vacuum) versus metastable (false vacuum) — by direct observation can be difficult when the lifetime of the state is very long but otherwise […]


Continue.. Detecting a long lived false vacuum with quantum quenches

Stable Coronal X-Ray Emission Over Twenty Years of XZ Tau

Kavli Affiliate: Moritz Guenther | First 5 Authors: Steven M. Silverberg, Hans Moritz Guenther, Pragati Pradhan, David A. Principe, P. C. Schneider | Summary: XZ Tau AB is a frequently observed binary YSO in the Taurus Molecular Cloud; XZ Tau B has been classified as an EXOr object. We present new Chandra/HETG-ACIS-S observations of XZ […]


Continue.. Stable Coronal X-Ray Emission Over Twenty Years of XZ Tau

Stable Coronal X-Ray Emission Over Twenty Years of XZ Tau

Kavli Affiliate: Moritz Guenther | First 5 Authors: Steven M. Silverberg, Hans Moritz Guenther, Pragati Pradhan, David A. Principe, P. C. Schneider | Summary: XZ Tau AB is a frequently observed binary YSO in the Taurus Molecular Cloud; XZ Tau B has been classified as an EXOr object. We present new Chandra/HETG-ACIS-S observations of XZ […]


Continue.. Stable Coronal X-Ray Emission Over Twenty Years of XZ Tau

Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Rahul Jayaraman, Michael Fausnaugh, George R. Ricker, Roland Vanderspek, | Summary: Throughout the past three decades, only a few tens of observations have been made of optical flashes contemporaneous with gamma-ray bursts (GRBs), despite the thousands of GRBs that have been detected during that same timeframe. In […]


Continue.. Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Rahul Jayaraman, Michael Fausnaugh, George R. Ricker, Roland Vanderspek, | Summary: Very few detections have been made of optical flashes contemporaneous with the prompt high-energy emission from a gamma-ray burst (GRB). In this work, we present and analyze light curves of optical GRB flashes and afterglows from […]


Continue.. Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Rahul Jayaraman, Michael Fausnaugh, George R. Ricker, Roland Vanderspek, | Summary: Very few detections have been made of optical flashes contemporaneous with prompt high-energy emission from a gamma-ray burst (GRB). In this work, we present and analyze light curves of GRB-associated optical flashes and afterglows from the […]


Continue.. Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

An M dwarf accompanied by a close-in giant orbiter with SPECULOOS

Kavli Affiliate: Sara Seager | First 5 Authors: Amaury H. M. J. Triaud, Georgina Dransfield, Taiki Kagetani, Mathilde Timmermans, Norio Narita | Summary: In the last decade, a dozen close-in giant planets have been discovered orbiting stars with spectral types ranging from M0 to M4, a mystery since known formation pathways do not predict the […]


Continue.. An M dwarf accompanied by a close-in giant orbiter with SPECULOOS