Probing the circumnuclear environment of NGC1275 with High-Resolution X-ray spectroscopy

Kavli Affiliate: Erin A. Kara | First 5 Authors: Christopher S. Reynolds, Robyn N. Smith, Andrew C. Fabian, Yasushi Fukazawa, Erin A. Kara | Summary: NGC1275 is the Brightest Cluster Galaxy (BCG) in the Perseus cluster and hosts the active galactic nucleus (AGN) that is heating the central 100,kpc of the intracluster medium (ICM) atmosphere […]


Continue.. Probing the circumnuclear environment of NGC1275 with High-Resolution X-ray spectroscopy

The Curious Case of ASASSN-20hx: A Slowly-Evolving, UV and X-ray Luminous, Ambiguous Nuclear Transient

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Jason T. Hinkle, Thomas W. -S. Holoien, Benjamin. J. Shappee, Jack M. M. Neustadt, Katie Auchettl | Summary: We present observations of ASASSN-20hx, a nearby ambiguous nuclear transient (ANT) discovered in NGC 6297 by the All-Sky Automated Survey for Supernovae (ASAS-SN). We observed ASASSN-20hx from $-$30 to […]


Continue.. The Curious Case of ASASSN-20hx: A Slowly-Evolving, UV and X-ray Luminous, Ambiguous Nuclear Transient

The Curious Case of ASASSN-20hx: A Slowly-Evolving, UV and X-ray Luminous, Ambiguous Nuclear Transient

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Jason T. Hinkle, Thomas W. -S. Holoien, Benjamin. J. Shappee, Jack M. M. Neustadt, Katie Auchettl | Summary: We present observations of ASASSN-20hx, a nearby ambiguous nuclear transient (ANT) discovered in NGC 6297 by the All-Sky Automated Survey for Supernovae (ASAS-SN). We observed ASASSN-20hx from $-$30 to […]


Continue.. The Curious Case of ASASSN-20hx: A Slowly-Evolving, UV and X-ray Luminous, Ambiguous Nuclear Transient

A month of monitoring the new magnetar Swift J1555.2-5402 during an X-ray outburst

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Teruaki Enoto, Mason Ng, Chin-ping Hu, Tolga Guver, Gaurava K. Jaisawal | Summary: The soft gamma-ray repeater Swift J1555.2-5402 was discovered by means of a 12-ms duration short burst detected with Swift BAT on 2021 June 3. Then 1.6 hours after the first burst detection, NICER started […]


Continue.. A month of monitoring the new magnetar Swift J1555.2-5402 during an X-ray outburst

TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet

Kavli Affiliate: George Ricker | First 5 Authors: Ares Osborn, David J. Armstrong, Bryson Cale, Rafael Brahm, Robert A. Wittenmyer | Summary: We present the bright (V$_{mag} = 9.12$), multi-planet system TOI-431, characterised with photometry and radial velocities. We estimate the stellar rotation period to be $30.5 pm 0.7$ days using archival photometry and radial […]


Continue.. TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet

$textit{TESS}$ Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant

Kavli Affiliate: Roland K. Vanderspek | First 5 Authors: Nicholas Saunders, Samuel K. Grunblatt, , , | Summary: While the population of confirmed exoplanets continues to grow, the sample of confirmed transiting planets around evolved stars is still limited. We present the discovery and confirmation of a hot Jupiter orbiting TOI-2184 (TIC 176956893), a massive […]


Continue.. $textit{TESS}$ Giants Transiting Giants I: A Non-inflated Hot Jupiter Orbiting a Massive Subgiant

First Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: The HERA Collaboration, Zara Abdurashidova, James E. Aguirre, Paul Alexander, Zaki S. Ali | Summary: We report upper-limits on the Epoch of Reionization (EoR) 21 cm power spectrum at redshifts 7.9 and 10.4 with 18 nights of data ($sim36$ hours of integration) from Phase I of […]


Continue.. First Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

Stress tensor mesostructures for freeform shaping of thin substrates

Kavli Affiliate: Youwei Yao | First 5 Authors: Youwei Yao, Brandon Chalifoux, Ralf Heilmann, Mark Schattenburg, | Summary: Stress-induced shaping, which deforms thin substrates utilizing stressed surface coatings, has enabled and enhanced a host of applications in past decades. Owing to the touchless fabrication process compatible with modern planar technology, the method has been applied […]


Continue.. Stress tensor mesostructures for freeform shaping of thin substrates

Stress tensor mesostructures for freeform shaping of thin substrates

Kavli Affiliate: Youwei Yao | First 5 Authors: Youwei Yao, Brandon Chalifoux, Ralf Heilmann, Mark Schattenburg, | Summary: Stress-induced shaping, which deforms thin substrates utilizing stressed surface coatings, has enabled and enhanced a host of applications in past decades. Owing to the touchless fabrication process compatible with modern planar technology, the method has been applied […]


Continue.. Stress tensor mesostructures for freeform shaping of thin substrates

HD 183579b: A Warm Sub-Neptune Transiting a Solar Twin Detected by TESS

Kavli Affiliate: Edward H. Morgan | First 5 Authors: Tianjun Gan, Megan Bedell, Sharon Xuesong Wang, Daniel Foreman-Mackey, Jorge MelĂ©ndez | Summary: We report the discovery and characterization of a transiting warm sub-Neptune planet around the nearby bright ($V=8.75$ mag, $K=7.15$ mag) solar twin HD 183579, delivered by the Transiting Exoplanet Survey Satellite (TESS). The […]


Continue.. HD 183579b: A Warm Sub-Neptune Transiting a Solar Twin Detected by TESS