Results 11 to 20 of about 3,685,182 (335)

S.O.S. Pinna nobilis: A Mass Mortality Event in Western Mediterranean Sea

open access: yesFrontiers in Marine Science, 2017
A mass mortality event (MME) impacting the bivalve Pinna nobilis was detected across a wide geographical area of the Spanish Mediterranean Sea (Western Mediterranean Sea) in early autumn 2016.
Maite Vázquez-Luis   +17 more
doaj   +2 more sources

COVID-safe behaviour before, during and after a youth mass gathering event: a longitudinal cohort study

open access: yesBMJ Open, 2022
Objective As mass gathering events resume in the wake of the COVID-19 pandemic, there is a pressing need to understand (a) engagement in COVID-safe behaviour at these events and (b) how attending a mass gathering impacts subsequent behaviours. This study
Tegan Cruwys   +3 more
doaj   +2 more sources

TV Columbae in outburst: a mass transfer event? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
We have observed a 2-mag outburst of TV Col, the fourth to be recorded. We find that the line emission was greatly increased during the outburst, with the extra flux coming primarily from the impact region of the accretion stream with the disc. We suggest that the outburst was caused by increased mass transfer from the secondary.
C. Hellier, D. A. H. Buckley
openaire   +2 more sources

Effects of a mass mortality event on gorgonian reproduction

open access: yesCoral Reefs, 2007
Financial support for this work was provided by the Port-Cros National Park through the Total Foundation and by research grants CTM2004-03120/MAR and CTM2006-01463 from the Spanish Ministerio de Educación y Ciencia, and ANR-05-BDIV- 005 from the French Agence Nationale de la Recherche.
Linares, Cristina   +2 more
openaire   +3 more sources

Tidal Disruption Event Demographics with the Zwicky Transient Facility: Volumetric Rates, Luminosity Function, and Implications for the Local Black Hole Mass Function [PDF]

open access: yesAstrophysical Journal Letters, 2023
We conduct a systematic tidal disruption event (TDE) demographics analysis using the largest sample of optically selected TDEs. A flux-limited, spectroscopically complete sample of 33 TDEs is constructed using the Zwicky Transient Facility over 3 yr ...
Yuhan Yao   +28 more
semanticscholar   +1 more source

First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass [PDF]

open access: yesAstrophysical Journal Letters, 2022
In this paper we quantify the temporal variability and image morphology of the horizon-scale emission from Sgr A*, as observed by the EHT in 2017 April at a wavelength of 1.3 mm. We find that the Sgr A* data exhibit variability that exceeds what can be
Event Horizon Telescope Collaboration   +269 more
semanticscholar   +1 more source

Cultural Phenomenon of Mass Event

open access: yesAlmanac "Culture and Contemporaneity", 2023
The purpose of the article is to research urban mass events as a specific form of public communication, its institutional and communicative characteristics, and the peculiarities of its current state. Research methodology.
Olga Zasyadvovk
semanticscholar   +1 more source

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way [PDF]

open access: yes, 2023
We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A$^*$), the Galactic center source associated with a supermassive black hole.
K. Akiyama   +387 more
semanticscholar   +1 more source

First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole [PDF]

open access: yesAstrophysical Journal, 2019
We present measurements of the properties of the central radio source in M87 using Event Horizon Telescope data obtained during the 2017 campaign. We develop and fit geometric crescent models (asymmetric rings with interior brightness depressions) using ...
K. Akiyama   +213 more
semanticscholar   +1 more source

GW190521 Mass Gap Event and the Primordial Black Hole Scenario.

open access: yesPhysical Review Letters, 2021
The LIGO/Virgo Collaboration has recently observed GW190521, the first binary black hole merger with at least the primary component mass in the mass gap predicted by the pair-instability supernova theory.
V. De Luca   +4 more
semanticscholar   +1 more source

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