348 citations · 1.6k across the 22 of their papers we have counts for
22 papers
Costs and benefits of automation for astronomical facilities
A. Yanes-Díaz, S. Rueda-Teruel, R. Bello +57
The Observatorio Astrofísico de Javalambre (OAJ†1) in Spain is a young astronomical facility, conceived and developed from the beginning as a fully automated observatory with the m…
Galaxy and Mass Assembly (GAMA): Extended Intra-Group Light in a group at from deep Hyper-Suprime Cam images
Cristina Martinez-Lombilla, Sarah Brough, Mireia Montes +7
We present a pilot study to assess the potential of Hyper Suprime-Cam Public Data Release 2 (HSC-PDR2) images for the analysis of extended faint structures within groups of galaxie…
A search for stellar tidal streams around Milky Way analogues from the SAGA sample
Juan Miro-Carretero, David Martinez-Delgado, Silvia Farras-Aloy +6
Context. Stellar tidal streams are the result of tidal interactions between a central galaxy and lower mass systems like satellite galaxies or globular clusters. For the Local Grou…
A giant umbrella-like stellar stream around the tidal ring galaxy NGC 922
David Martinez-Delgado, Santi Roca-Fabrega, Juan Miro-Carretero +6
Tidal ring galaxies are observed rarely in the local universe due to their intrinsically transient nature. The tidal ring structures are the result of strong interactions between g…
J-PLUS: Uncovering a large population of extreme [OIII] emitters in the local Universe
A. Lumbreras-Calle, C. López-Sanjuan, D. Sobral +17
Over the past decades, several studies have discovered a population of galaxies undergoing very strong star formation events, called extreme emission line galaxies (EELGs). In this…
Once in a blue stream: Detection of recent star formation in the NGC 7241 stellar stream with MEGARA
David Martinez-Delgado, Santi Roca-Fabrega, Armando Gil de Paz +23
In this work we study the striking case of a narrow blue stream around the NGC 7241 galaxy and its foreground dwarf companion. We want to figure out if the stream was generated by…
Introducing the LBT Imaging of Galactic Halos and Tidal Structures (LIGHTS) survey. A preview of the low surface brightness Universe to be unveiled by LSST
Ignacio Trujillo, Mauro D'Onofrio, Dennis Zaritsky +10
We present the first results of the LBT Imaging of Galaxy Haloes and Tidal Structures (LIGHTS) survey. LIGHTS is an ongoing observational campaign with the 2x8.4m Large Binocular T…
Hidden depths in the local Universe: The Stellar Stream Legacy Survey
David Martinez-Delgado, Andrew P. Cooper, Javier Roman +26
Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-Cold Dark Matter cosmology. These events are thought t…
MUSEQuBES: Calibrating the redshifts of Ly α emitters using stacked circumgalactic medium absorption profiles
Sowgat Muzahid, Joop Schaye, Raffaella Anna Marino +17
Lyman (Ly) emission lines are typically found to be redshifted with respect to the systemic redshifts of galaxies, likely due to resonant scattering of Ly photons. Here w…
Carving out the low surface brightness universe with NoiseChisel
Mohammad Akhlaghi
NoiseChisel is a program to detect very low signal-to-noise ratio (S/N) features with minimal assumptions on their morphology. It was introduced in 2015 and released within a colle…
Convergence of Lobatto-type Runge-Kutta methods for partitioned differential-algebraic systems of index 2
Rodrigo Takuro Sato Martín de Almagro
In this paper we propose a numerical scheme for partitioned systems of index 2 DAEs, such as those arising from nonholonomic mechanical problems and prove the order of a certain cl…
Nearly all the sky is covered by Lyman-alpha emission around high redshift galaxies
L. Wisotzki, R. Bacon, J. Brinchmann +22
Galaxies are surrounded by large reservoirs of gas, mostly hydrogen, fed by inflows from the intergalactic medium and by outflows due to galactic winds. Absorption-line measurement…
The MUSE Hubble Ultra Deep Field Survey VIII : Extended Lyman-alpha haloes around high-redshift star-forming galaxies
Floriane Leclercq, Roland Bacon, Lutz Wisotzki +17
We report the detection of extended Lyman-alpha (Lya) haloes around 145 individual star-forming galaxies at redshifts 3<z<6 in the Hubble Ultra Deep Field observed with the Multi-U…
The MUSE Hubble Ultra Deep Field Survey: II. Spectroscopic redshifts and comparisons to color selections of high-redshift galaxies
H. Inami, R. Bacon, J. Brinchmann +22
We have conducted a two-layered spectroscopic survey (1'x1' ultra deep and 3'x3' deep regions) in the Hubble Ultra Deep Field (HUDF) with the Multi Unit Spectroscopic Explorer (MUS…
The MUSE Hubble Ultra Deep Field Survey: I. Survey description, data reduction and source detection
Roland Bacon, Simon Conseil, David Mary +24
We present the MUSE Hubble Ultra Deep Survey, a mosaic of nine MUSE fields covering 90\% of the entire HUDF region with a 10-hour deep exposure time, plus a deeper 31-hour exposure…
Stacking the Cosmic Web in Fluorescent Lyman alpha Emission with MUSE
Sofia G. Gallego, Sebastiano Cantalupo, Simon Lilly +12
Cosmological simulations suggest that most of the matter in the Universe is distributed along filaments connecting galaxies. Illuminated by the cosmic UV background (UVB), these st…
Great Optically Luminous Dropout Research Using Subaru HSC (GOLDRUSH). I. UV Luminosity Functions at Derived with the Half-Million Dropouts on the 100 deg Sky
Yoshiaki Ono, Masami Ouchi, Yuichi Harikane +23
We study the UV luminosity functions (LFs) at , , and based on the deep large-area optical images taken by the Hyper Suprime-Cam (HSC) Subaru strategic program…
Separating detection and catalog production
Mohammad Akhlaghi
In the coming era of massive surveys (e.g. LSST, SKA), the role of the database designers and the algorithms they choose to adopt becomes the decisive factor in scientific progress…
Noise Based Detection and Segmentation of Nebulous Objects
Mohammad Akhlaghi, Takashi Ichikawa
A noise-based non-parametric technique for detecting nebulous objects, for example, irregular or clumpy galaxies, and their structure in noise is introduced. "Noise-based" and "non…
A Systematic Review of Strong Gravitational Lens Modeling Software
Alan T. Lefor, Toshifumi Futamase, Mohammad Akhlaghi
Despite expanding research activity in gravitational lens modeling, there is no particular software which is considered a standard. Much of the gravitational lens modeling software…
Total to central luminosity ratios of quiescent galaxies in MODS as an indicator of size evolution
Mohammad Akhlaghi, Takashi Ichikawa, Masaru Kajisawa
Using the very deep Subaru images of the GOODS-N region, from the MOIRCS Deep Survey and images from the HST/ACS, we have measured the Luminosity Ratio (LR) of the outer to the cen…
A universal stellar-mass and size relation of galaxies in GOODS-N region
Takashi Ichikawa, Masaru Kajisawa, Mohammad Akhlaghi
We present scaling relations between stellar-mass (Mstar) and the size of galaxies at 0.3 < z < 3 for half- (R_50) and 90 percent-light (R_90) radii, using a deep K-band selected c…