Results 91 to 100 of about 1,293,567 (326)

Tidal stability of giant molecular clouds in the Large Magellanic Cloud [PDF]

open access: yes, 2013
Star formation does not occur until the onset of gravitational collapse inside giant molecular clouds. However, the conditions that initiate cloud collapse and regulate the star formation process remain poorly understood.
Hughes, A.   +3 more
core   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

Tidal Disruption Events and High-energy Neutrinos [PDF]

open access: yesProceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021), 2021
Plenary highlight talk presented at the 37th International Cosmic Ray Conference (ICRC 2021).
openaire   +2 more sources

Reverberation Evidence for Stream Collision and Delayed Disk Formation in Tidal Disruption Events

open access: yesThe Astrophysical Journal
When a star passes through the tidal disruption radius of a massive black hole (BH), it can be torn apart by the tidal force of the BH, known as the tidal disruption event (TDE).
Hengxiao Guo   +11 more
doaj   +1 more source

Discovery of the Onset of Rapid Accretion by a Dormant Massive Black Hole

open access: yes, 2011
Massive black holes are believed to reside at the centres of most galaxies. They can be- come detectable by accretion of matter, either continuously from a large gas reservoir or impulsively from the tidal disruption of a passing star, and conversion of ...
A Ulmer   +84 more
core   +1 more source

Infrared Variability of Two Dusty White Dwarfs [PDF]

open access: yes, 2018
The most heavily polluted white dwarfs often show excess infrared radiation from circumstellar dust disks, which are modeled as a result of tidal disruption of extrasolar minor planets.
Bonsor, Amy   +13 more
core   +3 more sources

Respiratory Organ‐on‐a‐Chip for Disease Modeling: From Architecture to Functional Integration

open access: yesAdvanced Healthcare Materials, EarlyView.
Respiratory organ‐on‐a‐chip (ROC) models capture key mechanical and cellular cues of the human respiratory system, enabling quantitative dissection of disease mechanisms. This review links ROC architectures to disease modeling, functional integration, and commercialization, and proposes a decision framework that aligns model complexity with mechanistic
Jinzhuo Hu   +4 more
wiley   +1 more source

Fallback Rates in Partial Tidal Disruptions of White Dwarfs by Intermediate-mass Black Holes

open access: yesThe Astrophysical Journal
The fallback rate of debris after the partial tidal disruption of a star by an intermediate-mass black hole (IMBH) might provide important signatures of such black holes rather than supermassive ones.
Debojyoti Garain, Tapobrata Sarkar
doaj   +1 more source

AT 2022aedm and a New Class of Luminous, Fast-cooling Transients in Elliptical Galaxies

open access: yesThe Astrophysical Journal Letters, 2023
We present the discovery and extensive follow-up of a remarkable fast-evolving optical transient, AT 2022aedm, detected by the Asteroid Terrestrial impact Last Alert Survey (ATLAS).
M. Nicholl   +51 more
doaj   +1 more source

SWIFT J164449.3+573451: a plunging event with the Poynting-flux dominated outflow

open access: yes, 2012
Swift J164449+573451 is a peculiar outburst which is most likely powered by the tidal disruption of a star by a massive black hole. Within the tidal disruption scenario, we show that the periastron distance is considerably smaller than the disruption ...
Alexander   +28 more
core   +1 more source

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