FEASTS Combined with Interferometry (IV): Mapping HI Emission to a limit of $N_{text{HI}}=10^{17.7} text{cm}^{-2}$ in Seven Edge-on Galaxies

Posted by dbos Peking

Dong Yang, Jing Wang, Zhijie Qu, Zezhong Liang, Xuchen Lin | Summary: [[{“value”:”We present a statistical study of the neutral atomic hydrogen (HI) gas extending into the circumgalactic medium perpendicular to the disk for 7 edge-on galaxies with inclinations above $85^{circ}$ from the FEASTS program with a $3sigma$ ($20,text{km},text{s}^{-1}$) column density ($N_{text{HI}}$) depth of $5times10^{17} […]


Continue.. FEASTS Combined with Interferometry (IV): Mapping HI Emission to a limit of $N_{text{HI}}=10^{17.7} text{cm}^{-2}$ in Seven Edge-on Galaxies

TESSELLATE: Piecing Together the Variable Sky With TESS

Posted by dbos MIT

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Hugh Roxburgh, Ryan Ridden-Harper, Andrew Moore, Clarinda Montilla, Brayden Leicester | Summary: We present TESSELLATE, a dedicated pipeline for performing an untargeted search documenting all variable phenomena captured by the TESS space telescope. Building on the TESSreduce difference imaging pipeline, TESSELLATE extracts calibrated and reduced photometric […]


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Are Sparse Autoencoders Useful? A Case Study in Sparse Probing

Posted by dbos MIT

Kavli Affiliate: Max Tegmark | First 5 Authors: Subhash Kantamneni, Joshua Engels, Senthooran Rajamanoharan, Max Tegmark, Neel Nanda | Summary: Sparse autoencoders (SAEs) are a popular method for interpreting concepts represented in large language model (LLM) activations. However, there is a lack of evidence regarding the validity of their interpretations due to the lack of […]


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TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Posted by dbos MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) spectrograph, […]


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TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Posted by dbos MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) spectrograph, […]


Continue.. TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Posted by klaurent MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) […]


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Imaging and Spectral Performance of a Wide-gap CdTe Double-Sided Strip Detector

Posted by dbos Tokyo

Kavli Affiliate: Tadayuki Takahashi | First 5 Authors: Shunsaku Nagasawa, Takahiro Minami, Shin Watanabe, Tadayuki Takahashi, | Summary: The fourth flight of the Focusing Optics X-ray Solar Imager sounding rocket experiment (FOXSI-4) aimed to achieve the first imaging spectroscopic observations of mid-to-large class ( >= GOES C5 class) solar flares, in contrast to the previous […]


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Sub-Millimeter Variability in the Envelope & Warped Protostellar Disk of the Class 0 Protostar HOPS 358

Posted by dbos Peking

Kavli Affiliate: Gregory Herczeg | First 5 Authors: Patrick D. Sheehan, Doug Johnstone, Carlos Contreras Peña, Seonjae Lee, Gregory Herczeg | Summary: The JCMT Transient Survey recently discovered that the Class 0 protostar HOPS 358 decreased in 350 GHz continuum brightness by $sim25$% over the course of four years before brightening again for the next […]


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Ultra-high-energy $γ$-ray emission associated with the tail of a bow-shock pulsar wind nebula

Posted by dbos Peking

Kavli Affiliate: Zhuo Li | First 5 Authors: Zhen Cao, F. Aharonian, Y. X. Bai, Y. W. Bao, D. Bastieri | Summary: In this study, we present a comprehensive analysis of an unidentified point-like ultra-high-energy (UHE) $gamma$-ray source, designated as 1LHAASO J1740+0948u, situated in the vicinity of the middle-aged pulsar PSR J1740+1000. The detection significance […]


Continue.. Ultra-high-energy $γ$-ray emission associated with the tail of a bow-shock pulsar wind nebula

Ultra-high-energy $γ$-ray emission associated with the tail of a bow-shock pulsar wind nebula

Posted by dbos Peking

Kavli Affiliate: Li Xin Li | First 5 Authors: Zhen Cao, F. Aharonian, Y. X. Bai, Y. W. Bao, D. Bastieri | Summary: In this study, we present a comprehensive analysis of an unidentified point-like ultra-high-energy (UHE) $gamma$-ray source, designated as 1LHAASO J1740+0948u, situated in the vicinity of the middle-aged pulsar PSR J1740+1000. The detection […]


Continue.. Ultra-high-energy $γ$-ray emission associated with the tail of a bow-shock pulsar wind nebula