Results 61 to 70 of about 2,328,776 (249)

Distribution law of integrated intensity of solar optical flares

open access: yes, 1984
A distribution law is proposed which connects the occurrence frequency distribution of solar optical flares with their integrated intensity values.
Das, T. K., Das Gupta, M. K.
core   +1 more source

Brightest Gamma-Ray-burst Flare Observed in GRB 221009A: Bridging the Last Gap between the Prompt Emission and Flare in Gamma-Ray Bursts

open access: yesThe Astrophysical Journal Letters
Flares are usually observed during the afterglow phases of Gamma-ray bursts (GRBs) in the soft-X-ray, optical, and radio bands—but rarely in the gamma-ray band.
Zheng-Hang Yu   +48 more
doaj   +1 more source

Fine-Grained Monitoring of Gas Flaring in Persian Gulf Countries With Multispectral SDGSAT-1 Nighttime Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Gas flaring is a major source of greenhouse gas and a waste of nonrenewable resources. Remote sensing is suggested to be a capable proxy to provide independent, reliable, and regular observations on global gas flaring.
Zheng Zhang   +5 more
doaj   +1 more source

Some Studies on Solar X-ray Flare-associated Optical Flares, Microwave Bursts & Sudden Ionospheric Disturbances [PDF]

open access: yes, 1972
256-260Different classes of solar optical flares, microwave bursts at 4995 MHz and sudden ionospheric disturbances have been examined in relation to 1575 solar X-ray flares (or bursts) recorded in the 0.5.-3 A band by SOLRAD-9 satellite during the period
Gupta, M. K. Das, Sarkar, S. K.
core  

Beyond the Reports: Cultural Pressures, Unheard Voices and the Climate Accountability Gap in Oil and Gas Sector Governance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Environmental governance in Nigeria's oil and gas sector remains central to global climate justice debates, yet persistent accountability failures continue to undermine meaningful environmental and social outcomes. Despite extensive regulatory frameworks, accountability in resource‐dependent contexts is frequently reduced to formal reporting ...
Hammed Afolabi   +2 more
wiley   +1 more source

Statistical Study of the Timing of the Appearance of Hα Postflare Loops: Simple Scaling Law Based on Radiative Cooling

open access: yesThe Astrophysical Journal
Recent Sun-as-a-star studies have shown that postflare loops can manifest as a secondary peak in the H α light curve, suggesting that stellar postflare loops are detectable.
Takato Otsu   +3 more
doaj   +1 more source

Ichnology of the Rhätsandstein in the Exter Formation (Triassic), Germany

open access: yesGeological Journal, EarlyView.
Trace fossils from the Rhätsandstein of southern Germany record repeated colonization of high‐energy shallow‐marine substrates before the Triassic–Jurassic transition. The assemblage reflects environmental and preservational controls on ichnodiversity.
Daniel Sedorko, James H. Nebelsick
wiley   +1 more source

A Seven-day Multiwavelength Flare Campaign on AU Mic. III. Quiescent and Flaring Properties of the X-Ray Spectra and Chromospheric Lines

open access: yesThe Astrophysical Journal
We present the X-ray quiescent and flaring properties from a unique, 7 days multiwavelength observing campaign on the M1 flare star AU Mic. Combining the XMM-Newton X-ray spectra with the chromospheric line and broadband near-UV (NUV) and optical ...
Yuta Notsu   +5 more
doaj   +1 more source

Multiwavelength polarization observations of the γ-ray bright quasar PKS 0420-014

open access: yesEPJ Web of Conferences, 2013
We analyze total and polarized intensity images of the quasar PKS 0420-014 obtained monthly with the VLBA at 43 GHz during 2008–2012 along with γ-ray data provided by the Fermi Large Area Telescope and multi-color photometric and polarimetric ...
Troitskiy I.S.   +7 more
doaj   +1 more source

The effect of ovarian stimulation protocol on follicular asynchrony during in vitro fertilization – A retrospective cohort study

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To examine the effect of controlled ovarian stimulation (COS) protocol on follicular synchrony in a subsequent in vitro fertilization (IVF) cycle in patients whose previous cycle was canceled due to asynchrony. Methods A single‐center retrospective‐cohort study (January 2018–March 2024), including women undergoing IVF who had: (1) a ...
Alyssa Hochberg   +5 more
wiley   +1 more source

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