M. Calvo Gomez
YOU?
Author Swipe
View article: Search for the decay B0 → ϕϕ
Search for the decay B0 → ϕϕ Open
A bstract A search for the decay B 0 → ϕϕ is made using pp collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb − 1 . No significant signal is obse…
View article: Search for the lepton-flavour-violating decays B0 → K*0τ±e∓
Search for the lepton-flavour-violating decays B0 → K*0τ±e∓ Open
A bstract A first search at LHCb for the lepton-flavour-violating decays B 0 → K *0 τ ± e ∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at a centre-of-mass energy…
View article: CONCERTO: forward modeling of interferograms for calibration
CONCERTO: forward modeling of interferograms for calibration Open
The CarbON [CII] line in post-rEionisation and ReionisaTiOn epoch (CONCERTO) instrument is a low-resolution mapping Fourier-transform spectrometer, based on lumped-element kinetic inductance detector (LEKID) technology, operating at 130- 3…
View article: Overdense fireworks in GOODS-N: Unveiling a record number of massive dusty star forming galaxies at z$\sim$5.2 with the N2CLS
Overdense fireworks in GOODS-N: Unveiling a record number of massive dusty star forming galaxies at z$\sim$5.2 with the N2CLS Open
As part of the N2CLS Survey, we have identified a remarkable overdensity of eight bright dusty star-forming galaxies at z$\sim$5.2 in the GOODS-N field. Three of these galaxies, N2GN_1_01, 06, and 23 (known as GN10, HDF850.1, and S3, respe…
View article: NIKA2 Cosmological Legacy Survey
NIKA2 Cosmological Legacy Survey Open
Clusters of galaxies, formed in the latest stages of structure formation, are unique cosmological probes. With the advent of large CMB surveys like those from the Planck satellite, the ACT and SPT telescopes, we now have access to a large …
View article: Interpreting Millimeter Emission from IMEGIN galaxies NGC 2146 and NGC 2976
Interpreting Millimeter Emission from IMEGIN galaxies NGC 2146 and NGC 2976 Open
The millimeter continuum emission from galaxies provides important information about cold dust, its distribution, heating, and role in their InterStellar Medium (ISM). This emission also carries an unknown portion of the free-free and sync…
View article: KISS: instrument description and performance
KISS: instrument description and performance Open
Kinetic inductance detectors (KIDs) have been proven as reliable systems for astrophysical observations, especially in the millimetre range. Their compact size enables to optimally fill the focal plane, thus boosting sensitivity. The KISS …
View article: Machine Learning for Particle Identification in LHCb
Machine Learning for Particle Identification in LHCb Open
LHCb is one of the four largest high-energy physics experiments at CERN focused in high precision measurements of particle physics. The LHCb detector has undergone a recent upgrade [1] implying changes at subdetectors, data taking conditio…
View article: Magnetic field tunable spectral response of kinetic inductance detectors
Magnetic field tunable spectral response of kinetic inductance detectors Open
We tune the onset of optical response in aluminium kinetic inductance detectors from a natural cutoff frequency of 90 GHz to 60 GHz by applying an external magnetic field. The change in spectral response is due to the decrease of the super…
View article: Toward the first cosmological results of the NIKA2 Sunyaev-Zeldovich Large Program: The SZ-Mass scaling relation
Toward the first cosmological results of the NIKA2 Sunyaev-Zeldovich Large Program: The SZ-Mass scaling relation Open
In Sunyaev-Zeldovich (SZ) cluster cosmology, two tools are needed to be able to exploit data from large scale surveys in the millimeter-wave domain. An accurate description of the IntraCluster Medium (ICM) pressure profile is needed along …
View article: CONCERTO at APEX -- On-sky performance in continuum
CONCERTO at APEX -- On-sky performance in continuum Open
We present the data-processing algorithms and the performance of CONCERTO (CarbON CII line in post-rEionisation and ReionisaTiOn epoch) in continuum by analysing the data from the commissioning and scientific observations. The beam pattern…
View article: Absolute reference for microwave polarization experiments -- The COSMOCal project and its proof of concept
Absolute reference for microwave polarization experiments -- The COSMOCal project and its proof of concept Open
The cosmic microwave background (CMB), a remnant of the Big Bang, provides unparalleled insights into the primordial universe, its energy content, and the origin of cosmic structures. The success of forthcoming terrestrial and space experi…
View article: Faint millimeter NIKA2 dusty star-forming galaxies: finding the high-redshift population
Faint millimeter NIKA2 dusty star-forming galaxies: finding the high-redshift population Open
We develop a new framework to constrain the source redshift. The method jointly accounts for the detection/non-detection of spectral lines and the prior information from the photometric redshift and total infrared luminosity from spectral …
View article: Faint mm NIKA2 dusty star-forming galaxies: Finding the high-redshift population
Faint mm NIKA2 dusty star-forming galaxies: Finding the high-redshift population Open
Aims. High-redshift dusty star-forming galaxies (DSFGs) are proposed to be the progenitors of massive quiescent galaxies arising at cosmic noon, providing a crucial insight into the formation, assembly, and early quenching of massive galax…
View article: Stellar and dust emission profiles of IMEGIN galaxies
Stellar and dust emission profiles of IMEGIN galaxies Open
We present a morphological analysis of a set of spiral galaxies from the NIKA2 Guaranteed Time Large Program, IMEGIN. We have fitted a single Sérsic model on a set of broadband images, from ultra-violet (UV) to millimeter (mm) wavelengths,…
View article: Exploring the interstellar medium of NGC 891 at millimeter wavelengths using the NIKA2 camera
Exploring the interstellar medium of NGC 891 at millimeter wavelengths using the NIKA2 camera Open
In the framework of the IMEGIN Large Program, we used the NIKA2 camera on the IRAM 30-m telescope to observe the edge-on galaxy NGC 891 at 1.15 mm and 2 mm and at a FWHM of 11.1” and 17.6”, respectively. Multiwavelength data enriched with …
View article: Towards the first mean pressure profile estimate with the NIKA2 Sunyaev-Zeldovich Large Program
Towards the first mean pressure profile estimate with the NIKA2 Sunyaev-Zeldovich Large Program Open
High-resolution mapping of the hot gas in galaxy clusters is a key tool for cluster-based cosmological analyses. Taking advantage of the NIKA2 millimeter camera operated at the IRAM 30-m telescope, the NIKA2 SZ Large Program seeks to get a…
View article: IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): The spatially-resolved dust properties of NGC4254
IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): The spatially-resolved dust properties of NGC4254 Open
We present the first preliminary results of the project ICED , focusing on the face-on galaxy NGC4254. We use the millimetre maps observed with NIKA2 at lRAM-30m. as part of the IMEGIN Guaranteed Time Large Program. and of a wide collectio…
View article: NIKA2 observations of dust grain evolution from star-forming filament to T-Tauri disk: Preliminary results from NIKA2 observations of the Taurus B211/B213 filament
NIKA2 observations of dust grain evolution from star-forming filament to T-Tauri disk: Preliminary results from NIKA2 observations of the Taurus B211/B213 filament Open
To understand the evolution of dust properties in molecular clouds in the course of the star formation process, we constrain the changes in the dust emissivity index from star-forming filaments to prestellar and protostellar cores to T Tau…
View article: Preliminary Performance Study of an Alternative Calorimeter Clustering Solution for Allen in LHCb
Preliminary Performance Study of an Alternative Calorimeter Clustering Solution for Allen in LHCb Open
The LHCb experiment has recently started a new period of data taking after a major upgrade in both software and hardware. One of the biggest challenges has been the migration of the first part of the trigger system into a parallel GPU arch…
View article: NIKA2 observations of starless cores in Taurus and Perseus
NIKA2 observations of starless cores in Taurus and Perseus Open
Dusty starless cores play an important role in regulating the initial phases of the formation of stars and planets. In their interiors, dust grains coagulate and ice mantles form, thereby changing the millimeter emissivities and hence the …
View article: Constraining millimeter dust emission in nearby galaxies with NIKA2: The case of NGC2146 and NGC2976
Constraining millimeter dust emission in nearby galaxies with NIKA2: The case of NGC2146 and NGC2976 Open
This study presents the first millimeter continuum mapping observations of two nearby galaxies, the starburst spiral galaxy NGC2146 and the dwarf galaxy NGC2976, at 1.15 mm and 2 mm using the NIKA2 camera on the IRAM 30m telescope, as part…
View article: NIKA2 observations of 3 low-mass galaxy clusters at <i>z</i> ~ 1: Pressure profile and <i>Y</i><sub>SZ</sub> – <i>M</i> relation
NIKA2 observations of 3 low-mass galaxy clusters at <i>z</i> ~ 1: Pressure profile and <i>Y</i><sub>SZ</sub> – <i>M</i> relation Open
Three galaxy clusters selected from the XXL X-ray survey at high redshift and low mass ( z ~ 1 and M 500 ~ 1 – 2 × 10 14 M ⊙ ) were observed with NIKA2 to image their Sunyaev-Zel'dovich effect (SZ) signal. They all present an SZ morphology…
View article: NIKA2 observations of dust grain evolution from star-forming filament to T-Tauri disk: Preliminary results from NIKA2 observations of the Taurus B211/B213 filament
NIKA2 observations of dust grain evolution from star-forming filament to T-Tauri disk: Preliminary results from NIKA2 observations of the Taurus B211/B213 filament Open
To understand the evolution of dust properties in molecular clouds in the course of the star formation process, we constrain the changes in the dust emissivity index from star-forming filaments to prestellar and protostellar cores to T Tau…
View article: Machine Learning in Particle Physics Experiments: The Case of LHCb
Machine Learning in Particle Physics Experiments: The Case of LHCb Open
Particle physics is a source of engineering challenges, also for Machine Learning techniques. We showcase three current uses of Machine Learning in the LHCb experiment, one of the four main experiments of the Large Hadron Collider (LHC) at…
View article: Reconstruction of the LHCb Calorimeter Using Machine Learning: Lessons Learned
Reconstruction of the LHCb Calorimeter Using Machine Learning: Lessons Learned Open
In particle physics experiments, calorimeters are in charge of measuring the energy of incoming particles. In order to correctly estimate and evaluate the energy and other properties of these particles, a process, called reconstruction, is…
View article: IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): the spatially-resolved dust properties of NGC4254
IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): the spatially-resolved dust properties of NGC4254 Open
We present the first preliminary results of the project \textit{ICED}, focusing on the face-on galaxy NGC4254. We use the millimetre maps observed with NIKA2 at IRAM-30m, as part of the IMEGIN Guaranteed Time Large Program, and of a wide c…