Results 11 to 20 of about 596,014 (258)

The extended structure of the dwarf irregular galaxy Sagittarius [PDF]

, 2014
We present a detailed study of the stellar and HI structure of the dwarf irregular galaxy Sagittarius. We use new deep and wide field photometry to trace the surface brightness profile of the galaxy out to ~5.0' (corresponding to ~1600 pc) and down to ...
Battaglia, G., Beccari, G., Bellazzini, M., Fraternali, F., Galleti, S., Oosterloo, T. A., Perina, S., Sollima, A., Testa, V.   +8 more
core   +5 more sources

The star formation history of the Sculptor Dwarf Irregular Galaxy [PDF]

, 2012
[abridged] We study the resolved stellar populations and derive the SFH of the SDIG, a gas-rich dwarf galaxy member of the NGC7793 subgroup in the Sculptor group. We construct a CMD using archival HST observations and examine its stellar content.
Cole, Andrew A., Lianou, Sophia
core   +4 more sources

Accuracy and interpretability of smartwatch electrocardiogram for early detection of atrial fibrillation: A systematic review and meta-analysis. [PDF]

J Arrhythm
The smartwatch ECG algorithm achieved 86% sensitivity and 94% specificity with an sAUC of 96%, while manual readings by trained personnel reached 96% sensitivity, 95% specificity, and an sAUC of 98% in a brand‐specific subgroup analysis. These findings demonstrate that the smartwatch ECG detects AFib, although 3% of results are unreadable.
Iqhrammullah M, Abdullah A, Hermansyah, Ichwansyah F, Rani HA, Alina M, Simanjuntak AMT, Rampengan DDCH, Al-Gunaid ST, Gusti N, Damarkusuma A, Wikurendra EA.   +11 more
europepmc   +2 more sources

The Dwarf Irregular Galaxy UGC 7636 Exposed: Stripping at Work in the Virgo Cluster [PDF]

, 2000
We present the results of optical spectroscopy of a newly discovered H II region residing in the H I gas cloud located between the dwarf irregular galaxy UGC 7636 and the giant elliptical galaxy NGC 4472 in the Virgo Cluster.
Henry Lee, M. G. Richer, M. L. McCall
openalex   +3 more sources

Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with H.E.S.S. [PDF]

Physical Review D, 2021
We search for an indirect signal of dark matter through very high-energy gamma rays from the Wolf-Lundmark-Melotte (WLM) dwarf irregular galaxy. The pair annihilation of dark matter particles would produce Standard Model particles in the final state such
H. Collaboration, H. Abdallah, R. Adam, F. Aharonian, F. Benkhali, E. Anguner, C. Arcaro, C. Armand, T. Armstrong, H. Ashkar, Michael Backes, V. Baghmanyan, V. B. Martins, A. Barnacka, M. Barnard, Y. Becherini, D. Berge, K. Bernlohr, B. Bi, M. Bottcher, C. Boisson, J. Bolmont, M. Lavergne, M. Breuhaus, F. Brun, P. Brun, M. Bryan, M. Buchele, T. Bulik, T. Bylund, S. Caroff, A. Carosi, S. Casanova, T. Chand, S. Chandra, A. Chen, G. Cotter, M. Curyło, J. D. Mbarubucyeye, I. Davids, J. Davies, C. Deil, J. Devin, P. deWilt, L. Dirson, A. Djannati-Atai, A. Dmytriiev, A. Donath, Victor Doroshenko, C. Duffy, J. Dyks, K. Egberts, F. Eichhorn, S. Einecke, G. Emery, J. Ernenwein, K. Feijen, S. Fegan, A. Fiasson, G. F. D. Clairfontaine, G. Fontaine, S. Funk, M. Fussling, S. Gabici, Y. Gallant, G. Giavitto, L. Giunti, D. Glawion, J. Glicenstein, D. Gottschall, M. Grondin, J. Hahn, M. Haupt, G. Hermann, J. Hinton, W. Hofmann, C. Hoischen, T. Holch, M. Holler, M. Horbe, D. Horns, D. Huber, M. Jamrozy, D. Jankowsky, F. Jankowsky, A. Jardin-Blicq, V. Joshi, I. Jung-Richardt, E. Kasai, M. Kastendieck, K. Katarzy'nski, U. Katz, D. Khangulyan, B. Khélifi, S. Klepser, W. Kluźniak, N. Komin, R. Konno, K. Kosack, D. Kostunin, M. Kreter, G. Lamanna, A. Lemière, M. Lemoine-Goumard, J. Lenain, C. Levy, T. Lohse, I. Lypova, J. Mackey, J. Majumdar, D. Malyshev, V. Marandon, P. Marchegiani, A. Marcowith, A. Mares, G. Martí-Devesa, R. Marx, G. Maurin, P. Meintjes, M. Meyer, R. Moderski, M. Mohamed, L. Mohrmann, A. Montanari, C. Moore, P. Morris, E. Moulin, J. Muller, T. Murach, K. Nakashima, A. Nayerhoda, M. Naurois, H. Ndiyavala, F. Niederwanger, J. Niemiec, L. Oakes, P. O’Brien, H. Odaka, S. Ohm, L. Olivera-Nieto, E. Wilhelmi, M. Ostrowski, M. Panter, S. Panny, R. Parsons, G. Peron, B. Peyaud, Q. Piel, S. Pita, V. Poireau, A. Noel, D. Prokhorov, H. Prokoph, G. Puhlhofer, M. Punch, A. Quirrenbach, S. Raab, R. Rauth, P. Reichherzer, A. Reimer, O. Reimer, Q. Remy, M. Renaud, F. Rieger, L. Rinchiuso, C. Romoli, G. Rowell, B. Rudak, E. Ruiz-Velasco, V. Sahakian, S. Sailer, D. Sanchez, A. Santangelo, M. Sasaki, M. Scalici, F. Schussler, H. Schutte, U. Schwanke, S. Schwemmer, M. Seglar-Arroyo, M. Senniappan, A. Seyffert, N. Shafi, K. Shiningayamwe, R.Simoni, A.Sinha, H. Sol, A. Specovius, S. Spencer, M. Spir-Jacob, L. Stawarz, L. Sun, R. Steenkamp, C. Stegmann, S. Steinmassl, C. Steppa, T. Takahashi, T. Tavernier, A. Taylor, R. Terrier, D. Tiziani, M. Tluczykont, L. Tomankova, C. Trichard, M. Tsirou, R. Tuffs, Y. Uchiyama, D. D. Walt, C. Eldik, C. V. Rensburg, B. V. Soelen, G. Vasileiadis, J. Veh, C. Venter, P. Vincent, J. Vink, H. Volk, T. Vuillaume, Z. Wadiasingh, S. Wagner, J. Watson, F. Werner, R. White, A. Wierzcholska, Y. Wong, A. Yusafzai, M. Zacharias, R. Zanin, D. Zargaryan, A. Zdziarski, A. Zech, S. Zhu, J. Zorn, S. Zouari, N. Żywucka   +234 more
semanticscholar   +1 more source

Catching Tidal Dwarf Galaxies at a Later Evolutionary Stage with ALFALFA

The Astronomical Journal, 2023
We present deep optical imaging and photometry of four objects classified as “Almost-Dark” galaxies in the Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey because of their gas-rich nature and extremely faint or missing optical emission in ...
Laurin M. Gray, Katherine L. Rhode, Lukas Leisman, Pavel E. Mancera Piña, John M. Cannon, John J. Salzer, Lexi Gault, Jackson Fuson, Gyula I. G. Józsa, Elizabeth A. K. Adams, Nicholas J. Smith, Martha P. Haynes, Steven Janowiecki, Hannah J. Pagel   +13 more
doaj   +1 more source

Oxygen abundances in dwarf irregular galaxies and the metallicity - luminosity relationship [PDF]

, 2001
The low-luminosity dwarf irregular galaxies are considered. The oxygen abundances in HII regions of dwarf irregular galaxies were recalculated from published spectra through the recently suggested P - method. It has been found that the metallicity of low-
L. S. Pilyugin
openalex   +4 more sources

UVIT Imaging of WLM: Demographics of Star-forming Regions in the Nearby Dwarf Irregular Galaxy [PDF]

Astronomical Journal, 2018
We present a study of star-forming regions and their demographics in the nearby dwarf irregular galaxy WLM using Ultraviolet Imaging Telescope (UVIT) multiband observations in three filters, F148W, N245M, and N263M.
C. Mondal, A. Subramaniam, K. George
semanticscholar   +1 more source

Supernova Remnants in the Irregular Galaxy NGC 4449

The Astrophysical Journal, 2023
The nearby irregular galaxy NGC 4449 has a star formation rate of ∼0.4 M _☉ yr ^−1 and should host of order 70 supernova remnants (SNRs) younger than 20,000 yr, a typical age for SNRs expanding into an interstellar medium (ISM) with a density of 1 cm ^−3
P. Frank Winkler, Knox S. Long, William P. Blair   +2 more
doaj   +1 more source

Luminous AGB variables in the dwarf irregular galaxy, NGC 3109 [PDF]

Monthly notices of the Royal Astronomical Society, 2018
In a shallow near-infrared survey of the dwarf Irregular galaxy, NGC 3109, near the periphery of the Local Group, we have found eight Mira variables, seven of which appear to be oxygen-rich (O-Miras).
J. Menzies, P. Whitelock, M. Feast, N. Matsunaga   +3 more
semanticscholar   +1 more source