Results 131 to 140 of about 394,077 (286)

ANTLIA B: A FAINT DWARF GALAXY MEMBER OF THE NGC 3109 ASSOCIATION [PDF]

, 2015
We report the discovery of Antlia B, a faint dwarf galaxy at a projected distance of ∼72 kpc from NGC 3109 ( M V ∼ − 15 mag ?> ), the primary galaxy of the NGC 3109 dwarf association at the edge of the Local Group.
D. Sand, K. Spekkens, D. Crnojevi'c, J. Hargis, B. Willman, J. Strader, C. Grillmair   +6 more
semanticscholar   +1 more source

Mapping Corporate Investments Between China and Europe in an Era of Geoeconomic Competition

JCMS: Journal of Common Market Studies, Volume 63, Issue 3, Page 932-963, May 2025.
Abstract The consolidation of geoeconomic competition puts core aspects of global economic interdependence, such as the mutual China‐EU investment relationship, under increased pressure. Headlines about ‘derisking’, ‘decoupling’ or ‘deglobalization’ dominate current debates but tend to be overly simplistic.
Milan Babic, Lukas Linsi
wiley   +1 more source

Quantifying Bursty Star Formation in Dwarf Galaxies

The Open Journal of Astrophysics
Dwarf galaxy star formation histories are theoretically expected to be bursty, potentially leaving distinct imprints on their chemical evolution. We propose that episodic starbursts with quiescent periods longer than ~100 Myr should lead to discontinuous
Yuan-Sen Ting, Alexander Ji
doaj   +1 more source

PEARLS: A Potentially Isolated Quiescent Dwarf Galaxy with a Tip of the Red Giant Branch Distance of 30 Mpc

The Astrophysical Journal Letters
A wealth of observations have long suggested that the vast majority of isolated classical dwarf galaxies ( M _* = 10 ^7 –10 ^9 M _⊙ ) are currently star forming.
Timothy Carleton, Timothy Ellsworth-Bowers, Rogier A. Windhorst, Seth H. Cohen, Christopher J. Conselice, Jose M. Diego, Adi Zitrin, Haylee N. Archer, Isabel McIntyre, Patrick Kamieneski, Rolf A. Jansen, Jake Summers, Jordan C. J. D’Silva, Anton M. Koekemoer, Dan Coe, Simon P. Driver, Brenda Frye, Norman A. Grogin, Madeline A. Marshall, Mario Nonino, Nor Pirzkal, Aaron Robotham, Russell E. Ryan Jr., Rafael Ortiz III, Scott Tompkins, Christopher N. A. Willmer, Haojing Yan, Benne W. Holwerda   +27 more
doaj   +1 more source

The HI content of the recently discovered field dwarf galaxy APPLES1

, 2005
We present observations in a search for neutral hydrogen associated with the recently detected field dwarf galaxy APPLES1, performed with the Parkes radiotelescope.
A. Pasquali, A. Tarchi, Buyle, Carignan, Gallagher, Harris, I. Ferreras, J. Ott, Karachentsev, Karachentsev, Karachentsev, Kennicutt, Klypin, Lo, Mateo, Oosterloo, P. Castangia, Pagel, Pasquali, Paturel, Roberts, S. S. Larsen, Sandage, Stil, van den Bergh, van Zee   +25 more
core   +1 more source

CHARTING UNEXPLORED DWARF GALAXY TERRITORY WITH RR LYRAE [PDF]

, 2015
Observational biases against finding Milky Way (MW) dwarf galaxies at low Galactic latitudes (b ≲ ?> 20°) and at low surface brightnesses ( &mgr; V,0 ≳ ?> 29 mag arcsec − 2 ?> ) currently limit our understanding of the faintest limits of the galaxy ...
Mariah Baker, B. Willman
semanticscholar   +1 more source

GCN5‐related histone acetyltransferase HOOKLESS2 regulates fungal resistance and growth in tomato

New Phytologist, Volume 246, Issue 3, Page 1217-1235, May 2025.
Summary The functions of histone acetyltransferases (HATs) in the genetic control of crop traits and the underlying mechanisms are poorly understood. We studied the function of tomato HOOKLESS2 (SlHLS2), a member of the GCN5 family of HATs, through genetic, molecular and genomic approaches. Tomato hls2 mutants generated through CRISPR‐cas9 gene editing
Namrata Jaiswal, Chao‐Jan Liao, Ayomi Indika Hewavidana, Tesfaye Mengiste   +3 more
wiley   +1 more source

Searching for nearby diffuse dwarf galaxies in the COSMOS field

Frontiers in Astronomy and Space Sciences
It remains challenging to systematically survey nearby diffuse dwarf galaxies and address the formation mechanism of this population distinguishing from regular ones.
Dong Dong Shi, Xian Zhong Zheng, Zhizheng Pan, Yu Luo, Hongxia Deng, Qunzhi Hua, Xinyu Luo, Qiming Wu   +7 more
doaj   +1 more source

Tidal Disruption of Milky Way Satellites with Shallow Dark Matter Density Profiles

Galaxies, 2016
Dwarf galaxies of the Local Group provide unique possibilities to test current theories of structure formation. Their number and properties have put the broadly accepted cold dark matter model into question, posing a few problems. These problems now seem
Ewa L. Łokas
doaj   +1 more source

Pairwise dwarf galaxy formation and galaxy downsizing: some clues from extremely metal-poor Blue Compact Dwarf galaxies

, 2011
Some of the extremely metal-poor Blue Compact Dwarf galaxies (XBCDs) in the nearby universe form galaxy pairs with remarkably similar properties. This fact points to an intriguing degree of synchronicity in the formation history of these binary dwarf ...
H-H Loose, ID Karachentsev, KY Lo, P Papaderos, P Papaderos, P Papaderos, P Papaderos, P Papaderos, S Silich, SA Pustilnik, SA Pustilnik, V Icke, YI Izotov   +12 more
core   +1 more source