Results 101 to 110 of about 445,447 (209)
Dwarf irregular galaxies with extended HI gas disks: Suppression of small-scale spiral structure by dark matter halo
, 2018 Dwarf irregular galaxies with extended HI disk distributions, such as DDO 154, allow measurement of rotation curves, hence deduction of dark matter halo properties to large radial distances, up to several times the optical radius.Soumavo Ghosh, Chanda J. Jog, Ghosh, Soumavo, Jog, Chanda J +3 morecore +1 more sourceThe JWST Resolved Stellar Populations Early Release Science Program. VIII. The Spatially Resolved Star Formation History of WLM
The Astrophysical JournalRadial stellar population gradients within dwarf galaxies provide a promising avenue for disentangling the drivers of galaxy evolution, including environment. Within the Local Volume, radial stellar age gradient slopes correlate with interaction history, Roger E. Cohen, Kristen B. W. McQuinn, Alessandro Savino, Max J. B. Newman, Daniel R. Weisz, Andrew E. Dolphin, Martha L. Boyer, Matteo Correnti, Marla C. Geha, Mario Gennaro, Karoline M. Gilbert, Nitya Kallivayalil, Jack T. Warfield, Benjamin F. Williams, Alyson M. Brooks, Andrew A. Cole, Evan D. Skillman, Christopher T. Garling, Jason S. Kalirai, Jay Anderson +19 moredoaj +1 more sourceDuration and properties of the embedded phase of star formation in 37 nearby galaxies from PHANGS-JWST
Astronomy & AstrophysicsLight reprocessed by dust grains emitting in the infrared enables the study of the physics at play in dusty embedded regions, where ultraviolet and optical wavelengths are attenuated.Ramambason Lise, Chevance Mélanie, Kim Jaeyeon, Belfiore Francesco, Diederik Kruijssen J. M., Romanelli Andrea, Amiri Amirnezam, Boquien Médéric, Chown Ryan, Dale Daniel A., Dlamini Simthembile, Egorov Oleg V., Gerasimov Ivan, Glover Simon C. O., Grasha Kathryn, Hassani Hamid, Kim Hwihyun, Kreckel Kathryn, Koziol Hannah, Leroy Adam K., Méndez-Delgado José Eduardo, Neumann Justus, Neumann Lukas, Pan Hsi-An, Pathak Debosmita, Sandstrom Karin, Sarbadhicary Sumit K., Schinnerer Eva, Sun Jiayi, Sutter Jessica, Thilker David A., Ubeda Leonardo, Weinbeck Tony D., Whitmore Bradley C., Williams Thomas G. +34 moredoaj +1 more sourceThe Local Ultraviolet to Infrared Treasury. I. Survey Overview of the Broadband Imaging
The Astrophysical Journal Supplement SeriesThe Local Ultraviolet to Infrared Treasury (LUVIT) is a Hubble Space Telescope program that combines newly acquired data in the near-ultraviolet (NUV), optical, and near-infrared (NIR) with archival optical and NIR imaging to produce multiband ...Karoline M. Gilbert, Yumi Choi, Martha L. Boyer, Benjamin F. Williams, Daniel R. Weisz, Eric F. Bell, Julianne J. Dalcanton, Kristen B. W. McQuinn, Evan D. Skillman, Guglielmo Costa, Andrew E. Dolphin, Morgan Fouesneau, Léo Girardi, Steven R. Goldman, Karl D. Gordon, Puragra Guhathakurta, Maude Gull, Lea Hagen, Ky Huynh, Christina W. Lindberg, Paola Marigo, Claire E. Murray, Giada Pastorelli, Petia Yanchulova Merica-Jones +23 moredoaj +1 more sourceEuclid: Early Release Observations – The star cluster systems of the Local Group dwarf galaxies IC 10 and NGC 6822★
Astronomy & AstrophysicsStar clusters are valuable indicators of galaxy evolution, offering insights into the buildup of stellar populations across cosmic time. Understanding the intrinsic star cluster populations of dwarf galaxies is particularly important given these systems’ Howell J. M., Ferguson A. M. N., Larsen S. S., Lançon A., Annibali F., Cuillandre J.-C., Hunt L. K., Martínez-Delgado D., Massari D., Saifollahi T., Voggel K., Altieri B., Andreon S., Auricchio N., Baccigalupi C., Baldi M., Bardelli S., Biviano A., Branchini E., Brescia M., Brinchmann J., Camera S., Cañas-Herrera G., Candini G. P., Capobianco V., Carbone C., Carretero J., Castellano M., Castignani G., Cavuoti S., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Conversi L., Copin Y., Courbin F., Courtois H. M., Cropper M., Da Silva A., Degaudenzi H., De Lucia G., Dubath F., Duncan C. A. J., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Faustini F., Ferriol S., Finelli F., Frailis M., Franceschi E., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Haugan S. V. H., Hoekstra H., Holmes W., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Keihänen E., Kermiche S., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Le Brun A. M. C., Le Mignant D., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., Medinaceli E., Mei S., Melchior M., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mora A., Moresco M., Moscardini L., Nakajima R., Neissner C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Raison F., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sapone D., Sartoris B., Schirmer M., Schneider P., Schrabback T., Secroun A., Seidel G., Serrano S., Simon P., Sirignano C., Sirri G., Skottfelt J., Stanco L., Steinwagner J., Tallada-Crespí P., Taylor A. N., Teplitz H. I., Tereno I., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Wang Y., Weller J., Zamorani G., Zinchenko I. A., Martín-Fleitas J., Scottez V. +151 moredoaj +1 more sourceThe Local Ultraviolet to Infrared Treasury. II. Refining Star Formation Histories of 10 Metal-poor Dwarf Galaxies with Simultaneous UV-optical Two-CMD Fitting
The Astronomical JournalWe present the star formation histories (SFHs) of 10 metal-poor (≲12% Z _⊙ ), star-forming dwarf galaxies from the Local Ultraviolet to Infrared Treasury survey.Yumi Choi, Karoline M. Gilbert, Benjamin F. Williams, Daniel R. Weisz, Evan D. Skillman, Julianne J. Dalcanton, Kristen B. W. McQuinn, Andrew E. Dolphin, Giada Pastorelli, Martha L. Boyer, Karl D. Gordon, Léo Girardi, Maude Gull +12 moredoaj +1 more source
