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We present a photometric study of the dwarf galaxy population in the low to moderate density environments of the MATLAS (Mass Assembly of early-Type gaLAxies with their fine Structures) deep imaging survey. The sample consists of 2210…

Recent advances in deep dedicated imaging surveys over the past decade have uncovered a surprisingly large number of extremely faint low surface brightness galaxies with large physical sizes called ultra diffuse galaxies (UDGs) in clusters…

The presence of HI gas in galaxies is inextricably linked to their morphology and evolution. This paper aims to understand the HI content of the already identified 2210 dwarfs located in the low-to-moderate density environments of the…

It was first observed in the 1970s that the dwarf galaxies surrounding our Milky Way, so-called satellites, appear to be arranged in a thin, vast plane. Similar discoveries have been made around additional galaxies in the local Universe…

Astrophysics of Galaxies · Physics 2021-10-27 N. Heesters , R. Habas , F. R. Marleau , O. Müller , P. -A. Duc , M. Poulain , P. Durrell , R. Sánchez-Janssen , S. Paudel

Dwarf galaxies have been extensively studied in the Local Group, in nearby groups, and selected clusters, giving us a robust picture of their global stellar and dynamical properties in particular locations in the Universe. Intense study of…

We have conducted a search of a 9 deg$^{2}$ region of the CFHTLS around the Milky Way analog M101 (D$\sim$7 Mpc), in order to look for previously unknown low surface brightness galaxies. This search has uncovered 38 new low surface…

Astrophysics of Galaxies · Physics 2017-12-06 P. Bennet , D. J. Sand , D. Crnojević , K. Spekkens , D. Zaritsky , A. Karunakaran

We present an extensive catalog of 5405 early-type dwarf (dE) galaxies located in the various environments, i.e., clusters, groups and fields, of the local universe ($z$ $<$ 0.01). The dEs are selected through visual inspection of the…

Ultra diffuse galaxies, characterized by their low surface brightness and large physical size, constitute a subclass of dwarf galaxies that challenge our current understanding of galaxy formation and evolution. In this paper, we probe the…

The MATLAS project explores the surroundings of a complete sample of nearby massive early-type galaxies with multi-colour deep optical images obtained at the Canada-France Hawaii Telescope. The observing and data reduction techniques…

Astrophysics of Galaxies · Physics 2020-07-29 Pierre-Alain Duc

We use a complete, unbiased sample of 257 dwarf (10^8 MSun < Mstar < 10^9.5 MSun) galaxies at z < 0.08, in the COSMOS field, to study the morphological mix of the dwarf population in low-density environments. Visual inspection of extremely…

Astrophysics of Galaxies · Physics 2024-03-04 Ilin Lazar , Sugata Kaviraj , Aaron E. Watkins , Garreth Martin , Brian Bichang'a , Ryan A. Jackson

We report new nearby L and late-M dwarfs (d_phot <= 30 pc) discovered in our search for nearby ultracool dwarfs (I-J >= 3.0, later than M8.0) at low Galactic latitude (|b| < 15 degr) over 4,800 square degrees in the DENIS database. We used…

We present the results of the Exploration of Local VolumE Survey - Field (ELVES-Field), a survey of the dwarf galaxies in the Local Volume (LV; $D<10$ Mpc) over roughly $3,000$ square degrees, focusing on the field dwarf population.…

Astrophysics of Galaxies · Physics 2026-02-20 Scott Carlsten , Jiaxuan Li , Jenny Greene , Alex Drlica-Wagner , Shany Danieli

We performed a search for new dwarf galaxies in a direction towards the southwestern part of the Local Void using the data on DESI Legacy Imaging Surveys. In a sky area of $\sim1000$ square degrees, we discovered 12 candidates to nearby…

Astrophysics of Galaxies · Physics 2025-05-20 A. A. Popova , I. D. Karachentsev

A recent study of the distribution of dwarf galaxies in the MATLAS sample in galaxy groups revealed an excess of flattened satellite structures, reminiscent of the co-rotating planes of dwarf galaxies discovered in the local Universe. If…

We study stellar population parameters of a sample of 13 dwarf galaxies located in poor groups of galaxies using high resolution spectra observed with VIMOS at the ESO-VLT. LICK-indices were compared with Simple Stellar Population models to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 R. Grützbauch , F. Annibali , R. Rampazzo , A. Bressan , W. W. Zeilinger

The Euclid Q1 fields were selected for calibration purposes in cosmology and are therefore relatively devoid of nearby galaxies. However, this is precisely what makes them interesting fields in which to search for dwarf galaxies in local…

Astrophysics of Galaxies · Physics 2025-03-20 F. R. Marleau , R. Habas , D. Carollo , C. Tortora , P. -A. Duc , E. Sola , T. Saifollahi , M. Fügenschuh , M. Walmsley , R. Zöller , A. Ferré-Mateu , M. Cantiello , M. Urbano , E. Saremi , R. Ragusa , R. Laureijs , M. Hilker , O. Müller , M. Poulain , R. F. Peletier , S. J. Sprenger , O. Marchal , N. Aghanim , B. Altieri , A. Amara , S. Andreon , N. Auricchio , H. Aussel , C. Baccigalupi , M. Baldi , A. Balestra , S. Bardelli , A. Basset , P. Battaglia , R. Bender , A. Biviano , A. Bonchi , D. Bonino , E. Branchini , M. Brescia , J. Brinchmann , S. Camera , G. Cañas-Herrera , V. Capobianco , C. Carbone , J. Carretero , S. Casas , M. Castellano , G. Castignani , S. Cavuoti , K. C. Chambers , A. Cimatti , C. Colodro-Conde , G. Congedo , C. J. Conselice L. Conversi , Y. Copin , L. Corcione , F. Courbin , H. M. Courtois , M. Cropper , J. -C. Cuillandre , A. Da Silva , H. Degaudenzi , G. De Lucia , A. M. Di Giorgio , C. Dolding , H. Dole , F. Dubath , X. Dupac , S. Dusini , S. Escoffier , M. Fabricius , M. Farina , F. Faustini , S. Ferriol , P. Fosalba , S. Fotopoulou , M. Frailis , E. Franceschi , P. Franzetti , M. Fumana , S. Galeotta , K. George , B. Gillis , C. Giocoli , B. R. Granett , A. Grazian , F. Grupp , S. Gwyn , S. V. H. Haugan , J. Hoar , H. Hoekstra , W. Holmes , F. Hormuth , A. Hornstrup , P. Hudelot , K. Jahnke , M. Jhabvala , B. Joachimi , E. Keihänen , S. Kermiche , A. Kiessling , B. Kubik , M. Kümmel , M. Kunz , H. Kurki-Suonio , O. Lahav , Q. Le Boulc'h , A. M. C. Le Brun , D. Le Mignant , S. Ligori , P. B. Lilje , V. Lindholm , I. Lloro , G. Mainetti , D. Maino , E. Maiorano , O. Mansutti , S. Marcin , O. Marggraf , M. Martinelli , N. Martinet , F. Marulli , R. Massey , S. Maurogordato , H. J. McCracken , E. Medinaceli , S. Mei , M. Melchior , Y. Mellier , M. Meneghetti , E. Merlin , G. Meylan , A. Mora , M. Moresco , L. Moscardini , R. Nakajima , C. Neissner , S. -M. Niemi , J. W. Nightingale , C. Padilla , S. Paltani , F. Pasian , K. Pedersen , W. J. Percival , V. Pettorino , S. Pires , G. Polenta , M. Poncet , L. A. Popa , L. Pozzetti , F. Raison , R. Rebolo , A. Renzi , J. Rhodes , G. Riccio , E. Romelli , M. Roncarelli , E. Rossetti , B. Rusholme , R. Saglia , Z. Sakr , A. G. Sánchez , D. Sapone , B. Sartoris , M. Sauvage , J. A. Schewtschenko , M. Schirmer , P. Schneider , M. Scodeggio , A. Secroun , G. Seidel , M. Seiffert , S. Serrano , P. Simon , C. Sirignano , G. Sirri , J. Skottfelt , L. Stanco , J. Steinwagner , P. Tallada-Crespí , D. Tavagnacco , A. N. Taylor , H. I. Teplitz , I. Tereno , S. Toft , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , L. Valenziano , J. Valiviita , T. Vassallo , G. Verdoes Kleijn , A. Veropalumbo , Y. Wang , J. Weller , A. Zacchei , G. Zamorani , F. M. Zerbi , E. Zucca , M. Bolzonella , C. Burigana , R. Cabanac , L. Gabarra , M. Huertas-Company , V. Scottez , D. Scott

We present results from ID-MAGE (Identifying Dwarfs of MC Analog GalaxiEs), a survey aimed at identifying and characterizing unresolved satellite galaxies around 36~nearby LMC- and SMC-mass hosts (D$=$4$-$10~Mpc). We use archival DESI…

Galaxy evolution by interaction driven transformation is probably highly efficient in groups of galaxies. Dwarf galaxies with their shallow potential are expected to reflect the interaction most prominently in their observable structure.…

Astrophysics of Galaxies · Physics 2015-06-22 U. Hopp , J. Vennik

The morphology of galaxies gives essential constraints on the models of galaxy evolution. The morphology of the features in the low-surface-brightness regions of galaxies has not been fully explored yet because of observational…

The satellite populations of Milky Way--mass systems have been extensively studied, significantly advancing our understanding of galaxy formation and dark matter physics. In contrast, the satellites of lower-mass dwarf galaxies remain…

Astrophysics of Galaxies · Physics 2025-04-14 Jiaxuan Li , Jenny E. Greene , Shany Danieli , Scott G. Carlsten , Marla Geha , Fangzhou Jiang , Masayuki Tanaka
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