Performance predictions and contrast limits for an ultraviolet high contrast imaging testbed

Kavli Affiliate: Bruce Macintosh | First 5 Authors: Kyle Van Gorkom, Ramya M. Anche, Christopher B. Mendillo, Jessica Gersh-Range, Justin Hom | Summary: NASA’s Habitable Worlds Observatory (HWO) concept and the 2020 Decadal Survey’s recommendation to develop a large space telescope to "detect and characterize Earth-like extrasolar planets" requires new starlight suppression technologies to probe […]


Continue.. Performance predictions and contrast limits for an ultraviolet high contrast imaging testbed

Flux trapping in NbTiN strips and structures

Kavli Affiliate: Katja C. Nowack | First 5 Authors: Ruiheng Bai, Aliakbar Sepehri, Yen-Lee Loh, Anne-Marie Valente-Feliciano, Anna Herr | Summary: We use scanning superconducting quantum interference device (SQUID) microscopy to image vortices in superconducting strips fabricated from NbTiN thin films. We repeatedly cool superconducting strips with different width in an applied magnetic field and […]


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The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models

Kavli Affiliate: Kent Irwin | First 5 Authors: Erminia Calabrese, J. Colin Hill, Hidde T. Jense, Adrien La Posta, Irene Abril-Cabezas | Summary: We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test foundational assumptions of the standard cosmological model […]


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The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters

Kavli Affiliate: Kent Irwin | First 5 Authors: Thibaut Louis, Adrien La Posta, Zachary Atkins, Hidde T. Jense, Irene Abril-Cabezas | Summary: We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Telescope (ACT) data. These cover 19,000 deg$^2$ […]


Continue.. The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters

The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters

Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Thibaut Louis, Adrien La Posta, Zachary Atkins, Hidde T. Jense, Irene Abril-Cabezas | Summary: We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Telescope (ACT) data. These cover 19,000 deg$^2$ […]


Continue.. The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters

The Atacama Cosmology Telescope: DR6 Maps

Kavli Affiliate: Kent Irwin | First 5 Authors: Sigurd Naess, Yilun Guan, Adriaan J. Duivenvoorden, Matthew Hasselfield, Yuhan Wang | Summary: We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three frequency bands centered on 98, 150 and 220 GHz. […]


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The Atacama Cosmology Telescope: DR6 Maps

Kavli Affiliate: Shawn Henderson | First 5 Authors: Sigurd Naess, Yilun Guan, Adriaan J. Duivenvoorden, Matthew Hasselfield, Yuhan Wang | Summary: We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three frequency bands centered on 98, 150 and 220 GHz. […]


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Multiferroic Tunnel Junction Based on above-Room-Temperature Altermagnetic CrSb, Ferroelectric In2Se3 and Ferromagnetic Fe3GaTe2

Kavli Affiliate: Long Zhang | First 5 Authors: Long Zhang, Guoying Gao, , , | Summary: Altermagnets (AMs) with non-relativistic momentum-dependent spin splitting and compensated net magnetic moments have recently garnered profound fascination. Their idiosyncratic electronic structures facilitate spintronics and electronics, yet room-temperature (RT) AM-based magnetic tunnel junctions (MTJs) with versatile tunneling magnetoresistance (TMR) and […]


Continue.. Multiferroic Tunnel Junction Based on above-Room-Temperature Altermagnetic CrSb, Ferroelectric In2Se3 and Ferromagnetic Fe3GaTe2

Multi-wavelength Constraints on Dust Dynamics and Size Evolution in Protoplanetary Disk Rings. I. Method

Kavli Affiliate: Ruobing Dong | First 5 Authors: Linhan Yang, Ya-Ping Li, Ruobing Dong, Kiyoaki Doi, Hauyu Baobab Liu | Summary: Observations with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Jansky Very Large Array (JVLA) have revealed many dust rings in protoplanetary disks, often interpreted as dust traps at gas pressure bumps. Previous studies […]


Continue.. Multi-wavelength Constraints on Dust Dynamics and Size Evolution in Protoplanetary Disk Rings. I. Method