Search Results - "Ortiz, M. C."
-
1
Primeval very low-mass stars and brown dwarfs – I. Six new L subdwarfs, classification and atmospheric properties
Published in Monthly notices of the Royal Astronomical Society (01-01-2017)“…We have conducted a search for L subdwarf candidates within the photometric catalogues of the UKIRT Infrared Deep Sky Survey and Sloan Digital Sky Survey. Six…”
Get full text
Journal Article -
2
Discovery of wide low and very low-mass binary systems using Virtual Observatory tools
Published in Monthly notices of the Royal Astronomical Society (21-04-2017)“…Abstract The frequency of multiple systems and their properties are key constraints of stellar formation and evolution. Formation mechanisms of very low-mass…”
Get full text
Journal Article -
3
Primeval very low-mass stars and brown dwarfs – VI. Population properties of metal-poor degenerate brown dwarfs
Published in Monthly notices of the Royal Astronomical Society (11-06-2019)“…ABSTRACT We presented 15 new T dwarfs that were selected from UKIRT Infrared Deep Sky Survey, Visible and Infrared Survey Telescope for Astronomy , and…”
Get full text
Journal Article -
4
Effect of magnetic ion exchange (MIEX®) on removal of emerging organic contaminants
Published in Chemosphere (Oxford) (01-10-2018)“…In this study, the removal of nine emerging organic contaminants was investigated by using anion exchange resins. The selected compounds were carbamazepine,…”
Get full text
Journal Article -
5
Primeval very low-mass stars and brown dwarfs – VIII. The first age benchmark L subdwarf, a wide companion to a halo white dwarf
Published in Monthly notices of the Royal Astronomical Society (01-09-2024)“…ABSTRACT We report the discovery of five white dwarf + ultracool dwarf systems identified as common proper motion wide binaries in the Gaia Catalogue of Nearby…”
Get full text
Journal Article -
6
Discovery of the benchmark metal-poor T8 dwarf BD +01° 2920B
Published in Monthly notices of the Royal Astronomical Society (01-05-2012)“…We have searched the Wide-field Infrared Survey Explorer first data release for widely separated (≤10 000 au) late T dwarf companions to Hipparcos and Gliese…”
Get full text
Journal Article -
7
The Gaia ultracool dwarf sample–IV. GTC/OSIRIS optical spectra of Gaia late-M and L dwarfs
Published in Monthly notices of the Royal Astronomical Society (13-10-2024)“…ABSTRACT As part of our comprehensive, ongoing characterization of the low-mass end of the main sequence in the Solar neighbourhood, we used the OSIRIS…”
Get full text
Journal Article -
8
Full-spectrum cannabidiol reduces UVB damage through the inhibition of TGF-β1 and the NLRP3 inflammasome
Published in Photochemistry and photobiology (03-07-2024)“…The thermodynamic characteristics, antioxidant potential, and photoprotective benefits of full-spectrum cannabidiol (FS-CBD) against UVB-induced cellular death…”
Get full text
Journal Article -
9
Identifying ultra‐cool dwarfs at low Galactic latitudes: a southern candidate catalogue
Published in Monthly notices of the Royal Astronomical Society (21-12-2012)“…ABSTRACT We present an ultra‐cool dwarf (UCD) catalogue compiled from low southern Galactic latitudes and mid‐plane, from a cross‐correlation of the Two Micron…”
Get full text
Journal Article -
10
First discovery of an ultra-cool white dwarf benchmark in common proper motion with an M dwarf
Published in Monthly notices of the Royal Astronomical Society (21-04-2020)“…ABSTRACT Ultra-cool white dwarfs are among the oldest stellar remnants in the Universe. Their efficient gravitational settling and low effective temperatures…”
Get full text
Journal Article -
11
WTS-2 b: a hot Jupiter orbiting near its tidal destruction radius around a K dwarf
Published in Monthly notices of the Royal Astronomical Society (2014)“…We report the discovery of WTS-2 b, an unusually close-in 1.02-d hot Jupiter (M P = 1.12M J, R P = 1.30R J) orbiting a K2V star, which has a possible…”
Get full text
Journal Article -
12
Primeval very low-mass stars and brown dwarfs – III. The halo transitional brown dwarfs
Published in Monthly notices of the Royal Astronomical Society (01-09-2018)“…We report the discovery of an esdL3 subdwarf, ULAS J020858.62+020657.0, and a usdL4.5 subdwarf, ULAS J230711.01+014447.1. They were identified as L subdwarfs…”
Get full text
Journal Article -
13
Ultracool dwarfs in deep extragalactic surveys using the virtual observatory: ALHAMBRA and COSMOS
Published in Monthly notices of the Royal Astronomical Society (01-02-2021)“…ABSTRACT Ultracool dwarfs (UCDs) encompass a wide variety of compact stellar-like objects with spectra classified as late-M, L, T, and Y. Most of them have…”
Get full text
Journal Article -
14
The discovery of an M4+T8.5 binary system
Published in Monthly notices of the Royal Astronomical Society (21-05-2009)“…We report the discovery of a T8.5 dwarf, which is a companion to the M4 dwarf Wolf 940. At a distance of 12.50+0.75−0.67 pc, the angular separation of 32…”
Get full text
Journal Article -
15
Discovery of a new Y dwarf: WISE J030449.03−270508.3
Published in Monthly notices of the Royal Astronomical Society (21-10-2014)“…We present a new Y dwarf, WISE J030449.03−270508.3, confirmed from a candidate sample designed to pick out low-temperature objects from the Wide-field Infrared…”
Get full text
Journal Article -
16
Fate of parabens and 4-hydroxybenzoic acid in aquifer materials columns during step experiments with fresh and sea waters
Published in Journal of hydrology (Amsterdam) (01-02-2018)“…•Adsorption and desorption of parabens in laboratory sand columns with fresh and seawater present the same elution curves, with small delay with respect to the…”
Get full text
Journal Article -
17
Discovery of the first wide L dwarf + giant binary system and eight other ultracool dwarfs in wide binaries
Published in Monthly notices of the Royal Astronomical Society (01-06-2010)“…We identify 806 ultracool dwarfs (of which 34 are newly discovered L dwarfs) from their Sloan Digital Sky Survey (SDSS) riz photometry and obtain proper…”
Get full text
Journal Article -
18
A new multiresponse optimization approach in combination with a D-Optimal experimental design for the determination of biogenic amines in fish by HPLC-FLD
Published in Analytica chimica acta (16-11-2016)“…A new strategy to approach multiresponse optimization in conjunction to a D-optimal design for simultaneously optimizing a large number of experimental factors…”
Get full text
Journal Article -
19
J‐band variability of M dwarfs in the WFCAM Transit Survey
Published in Monthly notices of the Royal Astronomical Society (21-12-2012)“…ABSTRACT We present an analysis of the photometric variability of M dwarfs in the Wide Field Camera (WFCAM) Transit Survey. Although periodic light‐curve…”
Get full text
Journal Article -
20
Spectroscopy and kinematics of low-mass members of young moving groups
Published in Monthly notices of the Royal Astronomical Society (01-12-2010)“…We study a target sample of 68 low-mass objects (with spectral types in the range M4.5–L1) previously selected via photometric and astrometric criteria, as…”
Get full text
Journal Article