Publications (22)
FAUST VI. VLA 1623--2417 B: a new laboratory for astrochemistry around protostars on 50 au scale
C. Codella, A. López-Sepulcre, S. Ohashi +25
The ALMA interferometer, with its unprecedented combination of high-sensitivity and high-angular resolution, allows for (sub-)mm wavelength mapping of protostellar systems at Solar…
Giant Magneto-impedance in stress-annealed Finemet/Copper/Finemet based trilayer structures
B. Kaviraj, F. Alves
The resistive and reactive components of magneto-impedance (MI) for Finemet/Copper/Finemet sandwiched structures based on stress-annealed nanocrystalline Fe75Si15B6Cu1Nb3 ribbons a…
Deuteration of c-CH towards the pre-stellar core L1544
K. Giers, S. Spezzano, F. Alves +7
Context: In the centre of pre-stellar cores, the deuterium fractionation is enhanced due to the cold temperatures and high densities. Therefore, the chemistry of deuterated molecul…
Molecular line emission in NGC 4945, imaged with ALMA
C. Henkel, S. Muehle, G. Bendo +31
NGC 4945 is one of the nearest (~3.8 Mpc; 1" ~ 19 pc) starburst galaxies. ALMA band 3 (3--4\,mm) observations of HCN, HCO+, CS, C3H2, SiO, HCO, and CH3C2H were carried out with ~2"…
FAUST I. The hot corino at the heart of the prototypical Class I protostar L1551 IRS5
E. Bianchi, C. J. Chandler, C. Ceccarelli +63
The study of hot corinos in Solar-like protostars has been so far mostly limited to the Class 0 phase, hampering our understanding of their origin and evolution. In addition, recen…
Spectroscopic variability of two Oe stars
G. Rauw, T. Morel, Y. Naze +28
The Oe stars HD45314 and HD60848 have recently been found to exhibit very different X-ray properties: whilst HD60848 has an X-ray spectrum and emission level typical of most OB sta…
Seeds of Life in Space (SOLIS).VII. Discovery of a cold dense methanol blob toward the L1521F VeLLO system
C. Favre, C. Vastel, I. Jimenez-Serra +40
The SOLIS (Seeds Of Life In Space) IRAM/NOEMA Large Program aims at studying a set of crucial complex organic molecules in a sample of sources, with well-known physical structure,…
Variability monitoring of OB stars during the Mons campaign
T. Morel, G. Rauw, T. Eversberg +28
We present preliminary results of a 3-month campaign carried out in the framework of the Mons project, where time-resolved Halpha observations are used to study the wind and circum…
SOLIS IV. Hydrocarbons in the OMC-2 FIR 4 region, a probe of energetic particle irradiation of the region
C. Favre, C. Ceccarelli, A. López-Sepulcre +16
We report new interferometric images of cyclopropenylidene, c-CH, towards the young protocluster OMC-2 FIR\,4. The observations were performed at 82 and 85 GHz with the NOr…
Iterative reconstruction of the detector response for medical gamma cameras
A. Morozov, V. Solovov, F. Alves +4
Statistical event reconstruction techniques can give better results for gamma cameras than the traditional centroid method. However, implementation of such techniques requires deta…
Seeds of Life in Space (SOLIS) III. Formamide in protostellar shocks: evidence for gas-phase formation
C. Codella, C. Ceccarelli, P. Caselli +47
Context: Modern versions of the Miller-Urey experiment claim that formamide (NHCHO) could be the starting point for the formation of metabolic and genetic macromolecules. Intri…
FAUST VIII. The protostellar disk of VLA 1623-2417 W and its streamers imaged by ALMA
S. Mercimek, L. Podio, C. Codella +25
More than 50% of solar-mass stars form in multiple systems. It is therefore crucial to investigate how multiplicity affects the star and planet formation processes at the protostel…
Iterative reconstruction of SiPM light response functions in a square-shaped compact gamma camera
A. Morozov, F. Alves, J. Marcos +4
Compact gamma cameras with a square-shaped monolithic scintillator crystal and an array of silicon photomultipliers (SiPMs) are actively being developed for applications in areas s…
Hot methanol in the [BHB2007] 11 protobinary system: hot corino versus shock origin? : FAUST V
C. Vastel, F. Alves, C. Ceccarelli +63
Methanol is a ubiquitous species commonly found in the molecular interstellar medium. It is also a crucial seed species for the building-up of the chemical complexity in star formi…
The WR 140 periastron passage 2009: first results from MONS and other optical sources
R. Fahed, A. F. J. Moffat, J. Zorec +29
We present the results from the spectroscopic follow-up of WR140 (WC7 + O4-5) during its last periastron passage in January 2009. This object is known as the archetype of colliding…
Seeds Of Life In Space (SOLIS): The organic composition diversity at 300--1000 au scale in Solar-type star forming regions
C. Ceccarelli, P. Caselli, F. Fontani +43
Complex organic molecules have been observed for decades in the interstellar medium. Some of them might be considered as small bricks of the macromolecules at the base of terrestri…
Magnetic field morphology in nearby molecular clouds as revealed by starlight and submillimetre polarization
J. D. Soler, F. Alves, F. Boulanger +8
Within four nearby (d < 160 pc) molecular clouds, we statistically evaluate the structure of the interstellar magnetic field, projected on the plane of the sky and integrated along…
An Overview of the 2014 ALMA Long Baseline Campaign
ALMA Partnership, E. B. Fomalont, C. Vlahakis +246
A major goal of the Atacama Large Millimeter/submillimeter Array (ALMA) is to make accurate images with resolutions of tens of milliarcseconds, which at submillimeter (submm) wavel…
FAUST XI: Enhancement of the complex organic material in the shocked matter surrounding the [BHB2007] 11 protobinary system
C. Vastel, T. Sakai, C. Ceccarelli +20
iCOMs are species commonly found in the interstellar medium. They are believed to be crucial seed species for the build-up of chemical complexity in star forming regions as well as…
Performances of a Newly High Sensitive Trilayer F/Cu/F GMI Sensor
F. Alves, B. Kaviraj, L. Abi Rached +2
We have selected stress-annealed nanocrystalline Fe-based ribbons for ferromagnetic/copper/ferromagnetic sensors exhibiting high magneto-impedance ratio. Longitudinal magneto-imped…
Mass ejection and time variability in protostellar outflows: Cep E. SOLIS XVI
A. de A. Schutzer, P. R. Rivera-Ortiz, B. Lefloch +46
Protostellar jets are an important agent of star formation feedback, tightly connected with the mass-accretion process. The history of jet formation and mass-ejection provides cons…
SOLIS II. Carbon-chain growth in the Solar-type protocluster OMC2-FIR4
F. Fontani, C. Ceccarelli, C. Favre +42
The interstellar delivery of carbon atoms locked into molecules might be one of the key ingredients for the emergence of life. Cyanopolyynes are carbon chains delimited at their tw…