41 citations · 447 across the 27 of their papers we have counts for
29 papers
Cracking open the "dragon egg": ALMA 1.3mm observations of a compact, young high-mass core candidate at 30mas resolution
A. T. Barnes, J. D. Henshaw, Á. Sánchez-Monge +14
Massive prestellar cores are a central assumption of core-accretion models of high-mass star formation, yet convincing observational examples remain rare. The "dragon egg" (C2c1a)…
Discovery of thermal radio recombination line emission toward the high-mass protostar IRAS181622048
R. Fedriani, J. F. Gomez, Y. Cheng +7
The physical conditions within the innermost few tens of au of high-mass protostars () remain largely unexplored. At these scales, ionised emission may trace photoio…
Chemical complexity in star formation induced by stellar feedback: cores shock-formed by the supernova remnant W44
G. Cosentino, I. Jiménez-Serra, F. Fontani +8
Low-velocity shocks from Supernova Remnants (SNRs) may set the physical and chemical conditions of star formation in molecular clouds. Recent evidence suggests that the Sun might h…
CO Depletion in Infrared Dark Clouds
G. Cosentino, J. C. Tan, C. Gainey +10
Infrared Dark Clouds (IRDCs) are cold, dense structures representative of the initial conditions of star formation. Many studies of IRDCs employ CO to investigate cloud dynamics. H…
Low-velocity large-scale shocks in the infrared dark cloud G035.39-00.33: bubble-driven cloud-cloud collisions
G. Cosentino, I. Jiménez-Serra, R. Liu +7
Low-velocity large-scale shocks impacting on the ISM may efficiently shape molecular clouds and trigger star formation within them. These shocks, both driven by galactic bubbles an…
Interaction between the Supernova Remnant W44 and the Infrared Dark Cloud G034.77-00.55: shock induced star formation?
G. Cosentino, I. Jiménez-Serra, A. T. Barnes +11
How Supernova Remnant (SNR) shocks impact nearby molecular clouds is still poorly observationally constrained. It is unclear if SNRs can positively or negatively affect clouds star…
Polarized Light from Massive Protoclusters (POLIMAP). I. Dissecting the role of magnetic fields in the massive infrared dark cloud G28.37+0.07
C-Y Law, Jonathan C. Tan, Raphael Skalidis +11
Magnetic fields may play a crucial role in setting the initial conditions of massive star and star cluster formation. To investigate this, we report SOFIA-HAWC+ m observati…
Near-Infrared Observations of Outflows and YSOs in the Massive Star-Forming Region AFGL 5180
S. Crowe, R. Fedriani, J. C. Tan +30
Methods: Broad- and narrow-band imaging of AFGL 5180 was made in the NIR with the LBT, in both seeing-limited ($\sim0.5\arcsec$) and high angular resolution ($\sim0.09\arcsec$) Ada…
The sharpest view on the high-mass star-forming region S255IR. Near-InfraRed Adaptive Optics Imaging on the Outbursting Source NIRS3
R. Fedriani, A. Caratti o Garatti, R. Cesaroni +6
Massive stars have an impact on their surroundings from early in their formation until the end of their lives. However, very little is known about their formation. Episodic accreti…
Deuterium Fractionation across the Infrared Dark Cloud G034.77-00.55 interacting with the Supernova Remnant W44
G. Cosentino, J. C. Tan, I. Jiménez-Serra +10
Supernova remnants (SNRs) may regulate star formation in galaxies. For example, SNR-driven shocks may form new molecular gas or compress pre-existing clouds and trigger the formati…
Mother of Dragons: A Massive, quiescent core in the dragon cloud (IRDC G028.37+00.07)
A. T. Barnes, J. Liu, Q. Zhang +15
Context: Core accretion models of massive star formation require the existence of massive, starless cores within molecular clouds. Yet, only a small number of candidates for such t…
Astrochemical Diagnostics of the Isolated Massive Protostar G28.20-0.05
Prasanta Gorai, Chi-Yan Law, Jonathan C. Tan +8
We study the astrochemical diagnostics of the isolated massive protostar G28.20-0.05. We analyze data from ALMA 1.3~mm observations with resolution of 0.2 arcsec (1,000 au).…
The complex organic molecular content in the L1517B starless core
Andrés Megías, Izaskun Jiménez-Serra, Jesús Martín-Pintado +5
Recent observations of the pre-stellar core L1544 and the younger starless core L1498 have revealed that complex organic molecules (COMs) are enhanced in the gas phase toward their…
The SOFIA Massive (SOMA) Star Formation Survey. IV. Isolated Protostars
Ruben Fedriani, Jonathan C. Tan, Zoie Telkamp +13
We present m SOFIA-FORCAST images of 11 isolated protostars as part of the SOFIA Massive (SOMA) Star Formation Survey, with this morphological classification based on…
Negative and Positive Feedback from a Supernova Remnant with SHREC: A detailed Study of the Shocked Gas in IC443
G. Cosentino, I. Jiménez-Serra, J. C. Tan +20
Supernova remnants (SNRs) contribute to regulate the star formation efficiency and evolution of galaxies. As they expand into the interstellar medium (ISM), they transfer vast amou…
Isolated Massive Star Formation in G28.20-0.05
Chi-Yan Law, Jonathan C. Tan, Prasanta Gorai +9
We report high-resolution 1.3~mm continuum and molecular line observations of the massive protostar G28.20-0.05 with ALMA. The continuum image reveals a ring-like structure with 2,…
NIR jets from a clustered region of massive star formation: Morphology and composition in the IRAS 18264-1152 region
A. R. Costa Silva, R. Fedriani, J. C. Tan +6
Massive stars form deeply embedded in their parental clouds, making it challenging to directly observe these stars and their immediate environments. It is known that accretion and…
Astrochemical modelling of infrared dark clouds
Negar Entekhabi, Jonathan C. Tan, Giuliana Cosentino +8
Infrared dark clouds (IRDCs) are cold, dense regions of the interstellar medium (ISM) that are likely to represent the initial conditions for massive star formation. It is thus imp…
The Core Mass Function Across Galactic Environments. III. Massive Protoclusters
Theo J. O'Neill, Giuliana Cosentino, Jonathan C. Tan +2
The stellar initial mass function (IMF) is fundamental for many areas of astrophysics, but its origin remains poorly understood. It may be inherited from the core mass function (CM…
The complex organic molecular content in the L1498 starless core
Izaskun Jimenez-Serra, Anton I. Vasyunin, Silvia Spezzano +3
Observations carried out toward starless and pre-stellar cores have revealed that complex organic molecules are prevalent in these objects, but it is unclear what chemical processe…
ALMA-IRDC II. First high-angular resolution measurements of the 14N/15N ratio in a large sample of infrared-dark cloud cores
F. Fontani, A. T. Barnes, P. Caselli +6
The 14N/15N ratio in molecules exhibits a large variation in star-forming regions, especially when measured from N2H+ isotopologues. However, there are only a few studies performed…
ALMA-IRDC: Dense gas mass distribution from cloud to core scales
A. T. Barnes, J. D. Henshaw, F. Fontani +15
Infrared dark clouds (IRDCs) are potential hosts of the elusive early phases of high-mass star formation (HMSF). Here we conduct an in-depth analysis of the fragmentation propertie…
SiO Outflows as Tracers of Massive Star Formation in Infrared Dark Clouds
Mengyao Liu, Jonathan C. Tan, Joshua Marvil +4
To study the early phases of massive star formation, we present ALMA observations of SiO(5-4) emission and VLA observations of 6 cm continuum emission towards 32 Infrared Dark Clou…
SiO emission as a probe of Cloud-Cloud Collisions in Infrared Dark Clouds
G. Cosentino, I. Jiménez-Serra, J. D. Henshaw +6
Infrared Dark Clouds (IRDCs) are very dense and highly extincted regions that host the initial conditions of star and stellar cluster formation. It is crucial to study the kinemati…