M. López‐Corredoira
YOU?
Author Swipe
View article: The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data
The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data Open
We present an analysis of the structure, kinematics, and chemo-dynamical properties of the Milky Way bulge using RR Lyrae stars from Optical Gravitational Lensing Experiment (OGLE), and giant stars from APOGEE and Gaia that have distances …
View article: Alternative cosmologies
Alternative cosmologies Open
A few remarkable examples of alternative cosmological theories are shown, ranging from a compilation of variations on the Standard Model (inhomogeneous universe, Cold Big Bang, varying physical constants or gravity law, zero-active mass, M…
View article: Milky Way Dark Matter Distribution or MOND Test from Vertical Stellar Kinematics with Gaia DR3
Milky Way Dark Matter Distribution or MOND Test from Vertical Stellar Kinematics with Gaia DR3 Open
Vertical stellar kinematics+density can be used to trace the dark matter distribution (or the equivalent phantom mass in a Modified Newtonian Dynamics (MOND) scenario) through the Jeans equations. In this paper, we want to improve this typ…
View article: Milky Way dark matter distribution or MOND test from vertical stellar\n kinematics with Gaia DR3
Milky Way dark matter distribution or MOND test from vertical stellar\n kinematics with Gaia DR3 Open
Vertical stellar kinematics+density can be used to trace the dark matter\ndistribution [or the equivalent phantom mass in a Modified Newtonian Dynamics\n(MOND) scenario] through Jeans equations. In this paper, we want to improve\nthis type…
View article: The Structure, Populations and Kinematics of the Milky Way central and inner Bulge with OGLE, APOGEE and Gaia data
The Structure, Populations and Kinematics of the Milky Way central and inner Bulge with OGLE, APOGEE and Gaia data Open
We present an analysis of the structure, kinematics, and chemo-dynamical properties of the Milky Way bulge using RR Lyrae stars from OGLE, and giant stars from APOGEE and Gaia that have distances placing them in the inner Galaxy. Firstly, …
View article: Underestimation of Hubble constant error bars: a historical analysis
Underestimation of Hubble constant error bars: a historical analysis Open
An analysis of a historical compilation of Hubble-Lemaître constant values ($H_0$: 163 data points measured between 1976 and 2019) assuming the standard cosmological model gives a $χ^2$ value of the dispersion with respect to the weighted …
View article: The baryonic mass estimates of the Milky Way halo in the form of high-velocity clouds
The baryonic mass estimates of the Milky Way halo in the form of high-velocity clouds Open
View article: Measuring the Time Variation of the Fine-structure Constant with Quasars Detected by LAMOST
Measuring the Time Variation of the Fine-structure Constant with Quasars Detected by LAMOST Open
The [O III] $λλ 4960,5008$ emission lines in the optical spectra of galaxies and quasars have been widely used to investigate the possible variation of the fine-structure constant $α$ over cosmic time. In this work, we utilize the Large Sk…
View article: Galaxy Ages with Redshift z = 2–4: Stellar Population Synthesis for Candidates in FourStar Galaxy Evolution Survey
Galaxy Ages with Redshift z = 2–4: Stellar Population Synthesis for Candidates in FourStar Galaxy Evolution Survey Open
Observations of large amounts of massive galaxies with relatively old populations found at high redshifts are challenging galaxy formation scenarios within the standard cosmology. Precise determinations of the average age of these galaxies…
View article: Age of Massive Galaxies at Redshift 8
Age of Massive Galaxies at Redshift 8 Open
Recent James Webb Space Telescope data analyses have shown that massive red galaxies existed at redshifts z ≳ 6, a discovery that is difficult to understand in the context of standard cosmology (ΛCDM). Here, we analyze these observations m…
View article: Galaxy Ages with Redshift z=2-4: Stellar Population Synthesis for Candidates in FourStar Galaxy Evolution Survey
Galaxy Ages with Redshift z=2-4: Stellar Population Synthesis for Candidates in FourStar Galaxy Evolution Survey Open
Observations of large amount of massive galaxies with relatively old populations found at high redshifts are challenging galaxy formation scenarios within standard cosmology. Precise determinations of the average age of these galaxies woul…
View article: Age of massive galaxies at redshift 8
Age of massive galaxies at redshift 8 Open
Recent James Webb Space Telescope (JWST) data analyses have shown that massive red galaxies existed at redshifts $z>6$, a discovery that is difficult to understand in the context of standard cosmology ($Λ$CDM). Here we analyze these observ…
View article: Stellar halo density with LAMOST K and M giants
Stellar halo density with LAMOST K and M giants Open
Aims. We derive the morphology of the stellar component in the outer halo volume, and search for possible overdensities due to substructures therein. Methods. We made use of some of the data releases of the spectroscopic survey LAMOST DR8-…
View article: Stellar halo density with LAMOST K and M giants
Stellar halo density with LAMOST K and M giants Open
AIMS. We derive the morphology of the stellar component in the outer halo volume, and search for possible overdensities due to substructures therein. METHODS. We made use of some of the data releases of the spectroscopic survey LAMOST DR8-…
View article: The Hubble Tension Survey: A Statistical Analysis of the 2012-2022 Measurements
The Hubble Tension Survey: A Statistical Analysis of the 2012-2022 Measurements Open
In order to investigate the potential Hubble tension, we compile a catalogue of 216 measurements of the Hubble--Lemaître constant $H_0$ between 2012 and 2022, which includes 109 model-independent measurements and 107 $Λ$CDM model-based mea…
View article: The Hubble tension survey: A statistical analysis of the 2012–2022 measurements
The Hubble tension survey: A statistical analysis of the 2012–2022 measurements Open
In order to investigate the potential Hubble tension, we compile a catalogue of 216 measurements of the Hubble–Lemaître constant H0 between 2012 and 2022, which includes 109 model-independent measurements and 107 ΛCDM model-based measureme…
View article: Review of: "A simple direct empirical observation of systematic bias of the redshift as a distance indicator"
Review of: "A simple direct empirical observation of systematic bias of the redshift as a distance indicator" Open
View article: History and Problems of the Standard Model in Cosmology
History and Problems of the Standard Model in Cosmology Open
Since the beginning of the 20th century, a continuous evolution and perfection of what we today call the standard cosmological model has been produced, although some authors like to distinguish separate periods within this evolution. A pos…
View article: Mass Models of the Milky Way and Estimation of Its Mass from the Gaia DR3 Data Set
Mass Models of the Milky Way and Estimation of Its Mass from the Gaia DR3 Data Set Open
We use data from the Gaia DR3 data set to estimate the mass of the Milky Way (MW) by analyzing the rotation curve in the range of distances 5 to 28 kpc. We consider three mass models: The first model adds a spherical dark matter (DM) halo,…
View article: Mass models of the Milky Way and estimation of its mass from the GAIA DR3 data-set
Mass models of the Milky Way and estimation of its mass from the GAIA DR3 data-set Open
We use data from the Gaia DR3 dataset to estimate the mass of the Milky Way (MW) by analyzing the rotation curve in the range of distances 5 kpc to 28 kpc. We consider three mass models: the first model adds a spherical dark matter (DM) ha…
View article: Evidence for Population-dependent Vertical Motions and the Long-lived Nonsteady Lopsided Milky Way Warp
Evidence for Population-dependent Vertical Motions and the Long-lived Nonsteady Lopsided Milky Way Warp Open
We present a Galactic disk vertical velocity analysis using OB type stars (OB stars), red clump (RC) stars, and main-sequence turnoff (MSTO) stars with different average age populations crossmatched with LAMOST DR5 and Gaia DR3. We show th…
View article: Mapping the Milky Way Disk with Gaia DR3: 3D Extended Kinematic Maps and Rotation Curve to ≈30 kpc
Mapping the Milky Way Disk with Gaia DR3: 3D Extended Kinematic Maps and Rotation Curve to ≈30 kpc Open
We apply a statistical deconvolution of the parallax errors based on Lucy’s inversion method (LIM) to the Gaia DR3 sources to measure their 3D velocity components in the range of Galactocentric distances R between 8 and 30 kpc with their c…
View article: Evidence for Populations-dependent vertical motions and the Long-lived Non-Steady Lopsided Milky Way Warp
Evidence for Populations-dependent vertical motions and the Long-lived Non-Steady Lopsided Milky Way Warp Open
We present the Galactic disk vertical velocity analysis using OB type stars (OB), Red Clump stars (RC), and Main-Sequence-Turn-Off stars (MSTO) with different average age populations crossed matched with LAMOST DR5 and Gaia DR3. We reveal …
View article: Hubble tensions: a historical statistical analysis
Hubble tensions: a historical statistical analysis Open
Statistical analyses of measurements of the Hubble–Lemaître constant H0 (163 measurements between 1976 and 2019) show that the statistical error bars associated with the observed parameter measurements have been underestimated – or the sys…
View article: Mapping the Milky Way Disk with Gaia DR3: 3D extended kinematic maps and rotation curve to $\approx 30$ kpc
Mapping the Milky Way Disk with Gaia DR3: 3D extended kinematic maps and rotation curve to $\approx 30$ kpc Open
We apply a statistical deconvolution of the parallax errors based on Lucy's inversion method (LIM) to the Gaia-DR3 sources to measure their three dimensional velocity components in the range of Galactocentric distances $R$ between 8 kpc an…
View article: Analysing the structure of the bulge with Mira variables
Analysing the structure of the bulge with Mira variables Open
Context. The Galactic bulge at latitude 4 < | b |(deg) < 10 was claimed to show an X-shape, which means that stellar density distributions along the line of sight have a double peak. However, this double peak is only observed with the red-…
View article: Fitting of supernovae without dark energy
Fitting of supernovae without dark energy Open
With data from Pantheon, we have at our disposal a sample of more than a 1000 supernovae Ia covering a wide range of redshifts with good precision. Here, we make fits to the corresponding Hubble–Lemaître diagram with various cosmological m…
View article: Model selection using baryon acoustic oscillations in the final SDSS-IV release
Model selection using baryon acoustic oscillations in the final SDSS-IV release Open
The baryon acoustic oscillation (BAO) peak, seen in the cosmic matter distribution at redshifts up to [Formula: see text]3.5, reflects the continued expansion of the sonic horizon first identified in temperature anisotropies of the cosmic …
View article: SEGUE-2: Old Milky Way Stars Near and Far
SEGUE-2: Old Milky Way Stars Near and Far Open
The Sloan Extension for Galactic Understanding and Exploration 2 (SEGUE-2) obtained 128,288 low-resolution spectra ( R ∼ 1800) of 118,958 unique stars in the first year of the Sloan Digital Sky Survey III (2008–2009). SEGUE-2 targeted prio…
View article: Alternative ideas in cosmology
Alternative ideas in cosmology Open
Some remarkable examples of alternative cosmological theories are reviewed here, ranging from a compilation of variations on the Standard Model through the more distant quasi-steady-state cosmology, plasma cosmology, or universe models as …