Results 61 to 70 of about 39,486 (294)

Young M-dwarfs flare activity model: Towards better exoplanetary atmospheric characterisation

Astronomy & Astrophysics
Context. Stellar flares can significantly influence the atmospheres and habitability of orbiting exoplanets, especially around young and active M dwarfs.
Mamonova E., Kowalski A. F., Herbst K., Wedemeyer S., Werner S. C.   +4 more
doaj   +1 more source

Flare Stars in Star Clusters and Associations [PDF]

Symposium - International Astronomical Union, 1975
The study of stellar evolution can be undertaken either from a purely theoretical point of view or from a more observational approach. The present standpoint is the second one. It starts from the concepts of stellar evolution in associations and open clusters and from stellar flare activity.
V. A. Ambartsumian, L. V. Mirzoyan
openaire   +1 more source

Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus

Arthritis Care &Research, Accepted Article.
Background Economic insecurities, such as food, housing, transportation, and financial challenges, are modifiable risk factors and influence patient‐reported outcomes (PROs) in systemic lupus erythematosus (SLE). We examined: 1) associations between economic insecurities and PROs; 2) the impact of screening and addressing economic insecurities during ...
Jay Patel, Tripti Singh, Meredith Ingersoll, Shelby Gomez, Amanda Weber, Sarah E. Panzer, Sancia Ferguson, Christie M. Bartels, Shivani Garg   +8 more
wiley   +1 more source

Scalable, Advanced Machine Learning Based Approaches for Stellar Flare Identification: Application to TESS Short-cadence Data and Analysis of a New Flare Catalog

The Astronomical Journal
We apply multialgorithm machine learning models to TESS 2 minute survey data from Sectors 1–72 to identify stellar flares. Models trained with deep neural network, random forest, and XGBoost algorithms utilize four flare light-curve characteristics as ...
Chia-Lung Lin, Dániel Apai, Mark S. Giampapa, Wing-Huen Ip   +3 more
doaj   +1 more source

First Chromospheric Activity and Doppler Imaging Study of PW And Using a New Doppler Imaging Code: SpotDIPy

The Astrophysical Journal, 2023
Measuring the coverage of dark spots on cool stars is important to understanding how stellar magnetic activity scales with the rotation rate and convection zone depth. In this respect, it is crucial to infer surface magnetic patterns on G and K stars, to
Engin Bahar, Hakan V. Şenavcı, Emre Işık, Gaitee A. J. Hussain, Oleg Kochukhov, David Montes, Yue Xiang   +6 more
doaj   +1 more source

Rheumatologic Manifestations of Patients With Type B Insulin Resistance

Arthritis Care &Research, EarlyView.
Objective The objectives of this study were to identify laboratory and clinical features associated with type B insulin resistance (TBIR), a rare condition caused by autoantibodies that inhibit the insulin receptor, most frequently occurring in the setting of systemic lupus erythematosus (SLE), and to increase awareness of this rare, life‐threatening ...
S. Amara Ogbonnaya, Sandra G. Williams, Raphael A. Kirou, Marissa Lightbourne, Rebecca J. Brown   +4 more
wiley   +1 more source

A new flare star member candidate in the Pleiades cluster

, 2011
We present a new flare star, which was discovered during our survey on a selected field at the edge of the Pleiades cluster. The field was observed in the period 2007 - 2010 with three different CCD-cameras at the University Observatory Jena with ...
Ambartsumyan, Ambartsumyan, Basri, Broeg, Eisenbeiss, Hambly, Haro, Hertzsprung, Johnson, Kenyon, Mirzoyan, Mugrauer, Mugrauer, Rebolo, Rebolo, Rieke, Röser, Schwartz, Siess, Skrutskie, Stauffer, Stauffer, Steele, van Leeuwen, Zapatero Osorio   +24 more
core   +1 more source

Radio flare on η Gemini Star [PDF]

Symposium - International Astronomical Union, 1990
The first at the world Radio-Optical Telescope ROT-32/54/2, 6 was mounted on the southern slope of Mount Aragats in Armenia at 1700 m above sea level. The Large Antenna of ROT with the unmovable hemisperical main mirror of 54 m in diameter and movable small correcting mirror is the extremely accurate and shortwave (down to 1 mm). Using aperture is 32m.
P. M. Herouni, V. S. Oskanian
openaire   +1 more source

Prevalence of Systemic Lupus Erythematosus in Australia, 2010–2022: A Population‐Based Study Using Linked National Administrative Health Data

Arthritis Care &Research, Accepted Article.
Objectives Systemic lupus erythematosus (SLE) is a heterogenous inflammatory condition, with widely varying global prevalence estimates. Frequency of SLE in the general population of Australia has been reported to be notably lower than contemporary estimates in countries such as the US or UK at 19‐39 per 100,000 as opposed to 65‐97 per 100,000.
Lucinda Roper, Rachel Black, Joanna Tieu, Winnie Chen, Matthew Parker, Catherine Hill, Natasha Nassar, Mandana Nikpour   +7 more
wiley   +1 more source

Stellar Flare Study of nearby Young Moving Group Members with TESS Data

The Astrophysical Journal
We analyze TESS data to explore stellar flares and rotational characteristics in members of nearby young moving groups (NYMGs). Our study focuses on 417 members of NYMGs aged 10–150 Myr.
Andrew Tran, Inseok Song
doaj   +1 more source