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Context. Giant Low Surface Brightness galaxies, such as Malin 1, host extended stellar and gaseous disks exceeding 100 kpc in radius. Their formation and evolution remain debated, with interactions with satellite galaxies and accretion…

Malin 1 is the largest known low surface brightness (LSB) galaxy, the archetype of so-called giant LSBs. The structure and the origin of such galaxies are still poorly understood, especially due to the lack of high-resolution kinematics and…

Astrophysics of Galaxies · Physics 2020-05-13 Junais , S. Boissier , B. Epinat , P. Amram , B. F. Madore , A. Boselli , J. Koda , A. Gil de Paz , J. C. Muños Mateos , L. Chemin

Malin 1 is a unique, extraordinarily large low surface brightness galaxy. The structure and the origins of the galaxy are poorly understood. The reason for such a situation is an absence of detailed observational data, especially, of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 V. P. Reshetnikov , A. V. Moiseev , N. Ya. Sotnikova

Low surface brightness galaxies (LSBGs) represent a significant percentage of local galaxies but their formation and evolution remain elusive. They may hold crucial information for our understanding of many key issues (i.e., census of…

Giant Low Surface Brightness (GLSB) galaxies are extreme disk systems with exceptionally large sizes and low stellar densities. Their formation and evolution remain poorly constrained due to the challenges of detecting their faint disks. We…

In this paper we derive a possible mass profile for the low surface brightness galaxy, Malin 1, based upon previously published space-based and ground-based photometric properties and kinematics. We use properties of the bulge, normal disk,…

Astrophysics · Physics 2015-05-13 Marc S. Seigar

Aims. The central region of the Giant Low Surface Brightness galaxy Malin 1 has long been known to have a complex morphology with evidence of a bulge, disc, and potentially a bar hosting asymmetric star formation. In this work, we use…

Giant low-surface brightness (GLSB) galaxies are an extreme class of objects with very faint and extended gas-rich disks. Malin 1 is the largest GLSB galaxy known to date, but its formation is still poorly understood. We use VLT/MUSE IFU…

Astrophysics of Galaxies · Physics 2024-01-24 Junais , P. M. Weilbacher , B. Epinat , S. Boissier , G. Galaz , E. J. Johnston , T. H. Puzia , P. Amram , K. Małek

Since its discovery, Malin 1 has been considered the prototype and most extreme example of the class of giant low surface brightness disk galaxies. Examination of an archival Hubble Space Telescope I-band image reveals that Malin 1 contains…

Astrophysics · Physics 2008-11-26 A. J. Barth

We present Megacam deep optical images (g and r) of Malin 1 obtained with the 6.5m Magellan/Clay telescope, detecting structures down to ~ 28 B mag arcsec-2. In order to enhance galaxy features buried in the noise, we use a noise reduction…

Astrophysics of Galaxies · Physics 2015-12-23 Gaspar Galaz , Carlos Milovic , Vincent Suc , Luis Busta , Guadalupe Lizana , Leopoldo Infante , Santiago Royo

The low surface brightness disc galaxy Malin2 challenges the standard theory of galaxy evolution by its enormous total mass ~2 10^12 Ms which must have been formed without recent major merger events. The aim of our work is to create a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 A. Kasparova , A. Saburova , I. Katkov , I. Chilingarian , D. Bizyaev

The galaxy Malin 1 contains the largest stellar disk known but the formation mechanism of this structure has been elusive. In this paper, we report a Malin 1 analogue in the 100 Mpc IllustrisTNG simulation and describe its formation…

We report on results from GBT/ARGUS $^{12}$CO(1-0) observations for the giant low surface brightness galaxy Malin 1, which allow us to determine an upper limit for its CO mass, and hence its molecular gas mass and molecular gas mass surface…

Malin 1, being a class of giant low surface galaxies, continues to surprise us even today. The HST/F814W observation has shown that the central region of Malin 1 is more like a normal SB0/a galaxy, while the rest of the disk has the…

Astrophysics of Galaxies · Physics 2021-07-07 Kanak Saha , Suraj Dhiwar , Sudhanshu Barway , Chaitra Narayan , Shyam N. Tandon

Tidal interactions between massive galaxies and their satellites are fundamental processes in a Universe with L-Cold Dark Matter cosmology, redistributing material into faint features that preserve records of past galactic interactions.…

We investigate the formation and evolution of satellite galaxies using smoothed particle hydrodynamics (SPH) simulations of a Milky Way(MW)-like system, focussing on the best resolved examples, analogous to the classical MW satellites.…

Astrophysics of Galaxies · Physics 2015-05-28 Owen H. Parry , Vincent R. Eke , Carlos S. Frenk , Takashi Okamoto

We investigate the radial distribution of galaxies within their host dark matter halos by modeling their small-scale clustering, as measured in the Sloan Digital Sky Survey. Specifically, we model the Jiang et al. (2011) measurements of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Douglas F. Watson , Andreas A. Berlind , Cameron K. McBride , David W. Hogg , Tao Jiang

We investigate the interaction history of the M31 sub-group of galaxies by comparing surface photometry of its two nearest satellites, M32 and NGC 205, with N-body simulations of satellite destruction. The recent discovery of a giant stream…

Astrophysics · Physics 2009-11-07 Philip I. Choi , Puragra Guhathakurta , Kathryn V. Johnston

After over three decades of unsuccessful attempts, we report the first detection of molecular gas emission in Malin 1, the largest spiral galaxy observed to date, and one of the most iconic giant low surface brightness galaxies. Using ALMA,…

The orbits of satellite galaxies encode rich information about their histories. We investigate the orbital dynamics and histories of satellite galaxies around Milky Way (MW)-mass host galaxies using the FIRE-2 cosmological simulations,…

Astrophysics of Galaxies · Physics 2022-12-07 Isaiah B. Santistevan , Andrew Wetzel , Erik Tollerud , Robyn E. Sanderson , Jenna Samuel
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