A 20-Second Cadence View of Solar-Type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Re-characterization of pi Men c

Posted by klaurent MIT

Kavli Affiliate: Roland K. Vanderspek | First 5 Authors: Daniel Huber, Timothy R. White, Travis S. Metcalfe, Ashley Chontos, Michael M. Fausnaugh | Summary: We present an analysis of the first 20-second cadence light curves obtained by the TESS space telescope during its extended mission. We find a precision improvement of 20-second data compared to […]


Continue.. A 20-Second Cadence View of Solar-Type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Re-characterization of pi Men c

Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset

Posted by klaurent Stanford

Kavli Affiliate: Peter W. Graham | First 5 Authors: Michael A. Fedderke, Peter W. Graham, Derek F. Jackson Kimball, Saarik Kalia, | Summary: In our recent companion paper [arXiv:2106.00022], we pointed out a novel signature of ultralight kinetically mixed dark-photon dark matter. This signature is a quasi-monochromatic, time-oscillating terrestrial magnetic field that takes a particular […]


Continue.. Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset

Field moment expansion method for interacting Bosonic systems

Posted by klaurent Stanford

Kavli Affiliate: Tom Abel | First 5 Authors: Andrew Eberhardt, Michael Kopp, Alvaro Zamora, Tom Abel, | Summary: We introduce a numerical method and python package, https://github.com/andillio/CHiMES, that simulates quantum systems initially well approximated by mean field theory using a second order extension of the classical field approach. We call this the field moment expansion […]


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Confluence in quantum K-theory of weak Fano manifolds and q-oscillatory integrals for toric manifolds

Posted by dbos Tokyo

Kavli Affiliate: Todor Milanov | First 5 Authors: Todor Milanov, Alexis Roquefeuil, , , | Summary: For a smooth projective variety whose anti-canonical bundle is nef, we prove confluence of the small $K$-theoretic $J$-function, i.e., after rescaling appropriately the Novikov variables, the small $K$-theoretic $J$-function has a limit when $qto 1$, which coincides with the […]


Continue.. Confluence in quantum K-theory of weak Fano manifolds and q-oscillatory integrals for toric manifolds

Confluence in quantum K-theory of weak Fano manifolds and q-oscillatory integrals for toric manifolds

Posted by dbos Tokyo

Kavli Affiliate: Todor Milanov | First 5 Authors: Todor Milanov, Alexis Roquefeuil, , , | Summary: For a smooth projective variety whose anti-canonical bundle is nef, we prove confluence of the small $K$-theoretic $J$-function, i.e., after rescaling appropriately the Novikov variables, the small $K$-theoretic $J$-function has a limit when $qto 1$, which coincides with the […]


Continue.. Confluence in quantum K-theory of weak Fano manifolds and q-oscillatory integrals for toric manifolds

Tomographic Imaging by a Si/CdTe Compton Camera for In-111 and I-131 Radionuclides

Posted by dbos Tokyo

Kavli Affiliate: Shinichiro Takeda | First 5 Authors: Goro Yabu, Hiroki Yoneda, Tadashi Orita, Shin’ichiro Takeda, Pietro Caradonna | Summary: Tomographic imaging with radionuclides commonly used in nuclear medicine, such as $^{111}$In (171 and 245 keV) and $^{131}$I (364 keV), is in high demand for medical applications and small animal imaging. The Si/CdTe Compton camera […]


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Neutron Star$-$Neutron Star and Neutron Star$-$Black Hole Mergers: Multiband Observations and Early Warnings

Posted by klaurent Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Chang Liu, Lijing Shao, , , | Summary: The detections of gravitational waves (GWs) from binary neutron star (BNS) systems and neutron star–black hole (NSBH) systems provide new insights into dense matter properties in extreme conditions and associated high-energy astrophysical processes. However, currently information about NS equation […]


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Low levels of sulphur dioxide contamination of Venusian phosphine spectra

Posted by klaurent MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Jane S. Greaves, Paul B. Rimmer, Anita M. S. Richards, Janusz J. Petkowski, William Bains | Summary: New analysis is presented of the 1.1 mm wavelength absorption lines in Venus’ atmosphere that suggested the presence of phosphine. We retrieve a sulphur dioxide observation from the JCMT archive […]


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The air over there: exploring exoplanet atmospheres

Posted by klaurent Stanford

Kavli Affiliate: Laura Schaefer | First 5 Authors: Laura Schaefer, Vivien Parmentier, , , | Summary: Atmospheric compositions for rocky exoplanets will depend strongly on the bulk planetary composition and the orbital position of the planet. Non-traditional gases may be present in the atmospheres of exceptionally hot planets. Atmospheres of more clement planets will depend […]


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The air over there: exploring exoplanet atmospheres

Posted by klaurent Stanford

Kavli Affiliate: Laura Schaefer | First 5 Authors: Laura Schaefer, Vivien Parmentier, , , | Summary: Atmospheric compositions for rocky exoplanets will depend strongly on the bulk planetary composition and the orbital position of the planet. Non-traditional gases may be present in the atmospheres of exceptionally hot planets. Atmospheres of more clement planets will depend […]


Continue.. The air over there: exploring exoplanet atmospheres