Z. Zhang

HOTDISK. Finding Massive Protostellar Disks with Water and Refractory Molecular Species

Kai Yang, Yichen Zhang, Kei E. I. Tanaka, Tie Liu et autres

Abstract We present high-angular-resolution (∼0 . ″ 05, ∼60−250 au) Atacama Large Millimeter/submillimeter Array Band 6 observations from the HOTDISK project (Hot-Origin Tracer survey of DISKs of massive protostars) aimed at investigating the “hot-disk” chemical pattern traced by vibrationally excited water, NaCl, …

cn, ca, jp, ye, kr, us, de (code pays fourni par la source)

FAUST XXIX. OCS line emission: a new method for measuring the luminosity of embedded protostars in binary systems

Guillaume Saury, Vittorio Bariosco, Cecilia Ceccarelli, Ana López-Sepulcre et autres

The luminosity of embedded protostars is commonly measured via observations of the dust continuum spectral energy distribution from millimetre to infrared wavelengths. However, this method cannot be applied to embedded protostars in binary or multiple systems, where their components are usually unresolved …

FAUST – XXIX. OCS line emission: a new method for measuring the luminosity of embedded protostars in binary systems

Guillaume Saury, Vittorio Bariosco, Cecilia Ceccarelli, Ana López-Sepulcre et autres

ABSTRACT The luminosity of embedded protostars is commonly measured via observations of the dust continuum spectral energy distribution from millimetre to infrared wavelengths. However, this method cannot be applied to embedded protostars in binary or multiple systems, where their components are usually …

fr, es, it, de, us, jp, nl, mx (code pays fourni par la source)

FAUST

María José Maureira, Jaime E. Pineda, Hauyu Baobab Liu, P. Caselli et autres

Measuring the properties of disks around Class 0/I protostars is crucial for understanding protostellar assembly and early planet formation. We present high-resolution (~7.5 au) ALMA continuum observations at 1.3 and 3 mm of 16 disks around Class 0/I protostars across multiple star-forming …

de, tw, us, it, ca, mx, fr, jp, cn (code pays fourni par la source)

FAUST. XXVIII. High-Resolution ALMA Observations of Class 0/I Disks: Structure, Optical Depths, and Temperatures

María José Maureira, Jaime E. Pineda, Hauyu Baobab Liu, P. Caselli et autres

We present high-resolution (~7.5 au) ALMA observations at 1.3 and 3 mm of 16 disks around Class 0/I protostars across multiple star-forming regions and a variety of multiplicities, showing a range of disk sizes (~2-100 au) and including circumbinary disks (CBDs) in …

Multiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI

Layal Chahine, Cecilia Ceccarelli, M. De Simone, C. J. Chandler et autres

ABSTRACT The exploration of outflows in protobinary systems presents a challenging yet crucial endeavour, offering valuable insights into the dynamic interplay between protostars and their evolution. In this study, we examine the morphology and dynamics of jets and outflows within the IRAS …

fr, it, us, jp, mx, nl, de, ca, es, gb, cn (code pays fourni par la source)

FAUST

M. De Simone, L. Podio, L. Chahine, C. Codella et autres

Context. Understanding the connection between outflows, winds, accretion, and discs in the inner protostellar regions is crucial for comprehending star and planet formation processes. Aims. We aim to we explore the inner 300 au of the protostar IRAS 4A2 as part of …

fr, it, us, mx, jp, ca, nl, de (code pays fourni par la source)

PDRs4All

Dries Van De Putte, Raphaël Meshaka, Boris Trahin, E. Habart et autres

Context. Mid-infrared emission features are important probes of the properties of ionized gas and hot or warm molecular gas, which are difficult to probe at other wavelengths. The Orion Bar photodissociation region (PDR) is a bright, nearby, and frequently studied target containing …

us, fr, ca, es, be, jp, nl, gb, de, se, pt, cn, cl, br, au, it, in, dk, cu, ru (code pays fourni par la source)

Multiple chemical tracers finally unveil the intricate NGC\,1333 IRAS\,4A outflow system. FAUST XVI

Layal Chahine, Cecilia Ceccarelli, M. De Simone, C. J. Chandler et autres

The exploration of outflows in protobinary systems presents a challenging yet crucial endeavour, offering valuable insights into the dynamic interplay between protostars and their evolution. In this study, we examine the morphology and dynamics of jets and outflows within the IRAS\,4A protobinary …

FAUST. XIV. Probing the Flared Disk in L1527 with Sulfur-bearing Molecules

Z. Zhang, Nami Sakai, Satoshi Ohashi, Nadia M. Murillo et autres

Abstract IRAS04368+2557 in L1527 is a Class 0/I protostar with a clear disk-envelope system revealed by previous Atacama Large Millimeter/submillimeter Array (ALMA) observations. In this paper, we discuss the flared structure of this source with observed sulfur-bearing molecules included in the FAUST …

jp, mx, us, fr, it, de, gb, nl, es, tw (code pays fourni par la source)

PDRs4All

Asunción Fuente, E. Roueff, Franck Le Petit, J. Le Bourlot et autres

Context. One of the main problems in astrochemistry is determining the amount of sulfur in volatiles and refractories in the interstellar medium. The detection of the main sulfur reservoirs (icy H 2 S and atomic gas) has been challenging, and estimates are …

es, fr, us, jp, se, ca, de, br, it, ae (code pays fourni par la source)

PDRs4All IX. Sulfur elemental abundance in the Orion Bar

Asunción Fuente, E. Roueff, Franck Le Petit, J. Le Bourlot et autres

One of the main problems in astrochemistry is determining the amount of sulfur in volatiles and refractories in the interstellar medium. The detection of the main sulfur reservoirs (icy H$_2$S and atomic gas) has been challenging, and estimates are based on the …