D. Harsono
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View article: The factors that influence protostellar multiplicity
The factors that influence protostellar multiplicity Open
Context. Protostellar multiplicity is a common outcome of the star formation process. To fully understand the formation and evolution of these systems, the physical parameters of the molecular gas together with the dust must be systematica…
View article: The factors that influence protostellar multiplicity II. Gas temperature and mass in Perseus with APEX
The factors that influence protostellar multiplicity II. Gas temperature and mass in Perseus with APEX Open
Protostellar multiplicity is a common outcome of the star formation process. To fully understand the formation and evolution of these systems, the physical parameters of the molecular gas together with the dust must be systematically chara…
View article: Management of Generalized Periodontitis Stage III Grade B with Subgingival Curettage Procedure
Management of Generalized Periodontitis Stage III Grade B with Subgingival Curettage Procedure Open
Periodontitis is an inflammatory disease of the supporting structures of the teeth that results in progressive damage to the periodontal ligament and alveolar bone. This condition has become a prevalent disease worldwide, with a prevalence…
View article: Mid-infrared extinction curve for protostellar envelopes from JWST-detected embedded jet emission: The case of TMC1A
Mid-infrared extinction curve for protostellar envelopes from JWST-detected embedded jet emission: The case of TMC1A Open
Context . Dust grains are fundamental components of the interstellar medium (ISM), playing a crucial role in star formation as catalysts for chemical reactions and planetary building blocks. Extinction curves can serve as a tool for charac…
View article: The edge-on disc Tau 042021: Icy grains at high altitudes and a wind containing astronomical polycyclic aromatic hydrocarbons
The edge-on disc Tau 042021: Icy grains at high altitudes and a wind containing astronomical polycyclic aromatic hydrocarbons Open
Context . Spectra of the nearly edge-on protoplanetary discs observed with the JWST have shown ice absorption bands of varying optical depths and peculiar profiles, challenging radiative transfer modelling and our understanding of dust and…
View article: Cospatial ice mapping of H2O with CO2 and CO across a molecular cloud with JWST/NIRCam
Cospatial ice mapping of H2O with CO2 and CO across a molecular cloud with JWST/NIRCam Open
View article: The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase
The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase Open
We present a JWST MIRI/MRS spectrum of the inner disk of WISE J044634.16–262756.1B (hereafter J0446B), an old (∼34 Myr) M4.5 star but with hints of ongoing accretion. The spectrum is molecule-rich and dominated by hydrocarbons. We detect 1…
View article: Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the Early Release Science Ice Age program
Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the Early Release Science Ice Age program Open
Protostars contain icy ingredients necessary for the formation of potential habitable worlds, therefore, it is crucial to understand their chemical and physical environments. This work is focused on the ice features towards the binary prot…
View article: The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase
The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase Open
We present a JWST MIRI/MRS spectrum of the inner disk of WISE J044634.16$-$262756.1B (hereafter J0446B), an old ($\sim$34 Myr) M4.5 star but with hints of ongoing accretion. The spectrum is molecule-rich and dominated by hydrocarbons. We d…
View article: Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the ERS Ice Age program
Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the ERS Ice Age program Open
This work focuses on the ice features toward the binary protostellar system Ced 110 IRS 4A and 4B, and observed with JWST as part of the Early Release Science Ice Age collaboration. We aim to explore the JWST observations of the binary pro…
View article: JWST Ice Band Profiles Reveal Mixed Ice Compositions in the HH 48 NE Disk
JWST Ice Band Profiles Reveal Mixed Ice Compositions in the HH 48 NE Disk Open
Planet formation is strongly influenced by the composition and distribution of volatiles within protoplanetary disks. With JWST, it is now possible to obtain direct observational constraints on disk ices, as recently demonstrated by the de…
View article: IR spectra of pure and apolar ice mixtures
IR spectra of pure and apolar ice mixtures Open
This data set corresponds to the publication "JWST ice band profiles reveal mixed ice compositions in the HH 48 NE disk". NASA ADS link Files contain the laboratory-measured IR spectra (wavenumber vs. absorbance) for pure ices and apolar i…
View article: JCMT 850 μm Continuum Observations of Density Structures in the G35 Molecular Complex
JCMT 850 μm Continuum Observations of Density Structures in the G35 Molecular Complex Open
Filaments are believed to play a key role in high-mass star formation. We present a systematic study of the filaments and their hosting clumps in the G35 molecular complex using James Clerk Maxwell Telescope SCUBA-2 850 μ m continuum data.…
View article: JCMT 850 $\micron$ continuum observations of density structures in the G35 molecular complex
JCMT 850 $\micron$ continuum observations of density structures in the G35 molecular complex Open
Filaments are believed to play a key role in high-mass star formation. We present a systematic study of the filaments and their hosting clumps in the G35 molecular complex using JCMT SCUBA-2 850 $\micron$ continuum data. We identified five…
View article: The factors that influence protostellar multiplicity
The factors that influence protostellar multiplicity Open
Context. Protostellar multiplicity is common at all stages and mass ranges. However, the factors that determine the multiplicity of protostellar systems have not been systematically characterized through their molecular gas. Aims. We chara…
View article: A JWST/MIRI analysis of the ice distribution and polycyclic aromatic hydrocarbon emission in the protoplanetary disk HH 48 NE
A JWST/MIRI analysis of the ice distribution and polycyclic aromatic hydrocarbon emission in the protoplanetary disk HH 48 NE Open
Context. Ice-coated dust grains provide the main reservoir of volatiles that play an important role in planet formation processes and may become incorporated into planetary atmospheres. However, due to observational challenges, the ice abu…
View article: A JWST/MIRI analysis of the ice distribution and PAH emission in the protoplanetary disk HH 48 NE
A JWST/MIRI analysis of the ice distribution and PAH emission in the protoplanetary disk HH 48 NE Open
Ice-coated dust grains provide the main reservoir of volatiles that play an important role in planet formation processes and may become incorporated into planetary atmospheres. However, due to observational challenges, the ice abundance di…
View article: The asymmetric bipolar [Fe II] jet and H<sub>2</sub> outflow of TMC1A resolved with the JWST NIRSpec Integral Field Unit
The asymmetric bipolar [Fe II] jet and H<sub>2</sub> outflow of TMC1A resolved with the JWST NIRSpec Integral Field Unit Open
Context . Protostellar outflows exhibit large variations in their structure depending on the observed gas emission. To understand the origin of the observed variations, it is important to analyze the differences in the observed morphology …
View article: Emergence of high-mass stars in complex fiber networks (EMERGE)
Emergence of high-mass stars in complex fiber networks (EMERGE) Open
Context. Recent molecular surveys have revealed the rich gas organization of sonic-like filaments at small scales (so-called fibers) in all types of environments prior to the formation of low- and high-mass stars. These fibers form at the …
View article: The Asymmetric Bipolar Fe II Jet and H2 Outflow of TMC1A Resolved with JWST's NIRSpec IFU
The Asymmetric Bipolar Fe II Jet and H2 Outflow of TMC1A Resolved with JWST's NIRSpec IFU Open
(abridged) Protostellar outflows exhibit large variations in their structure depending on the observed gas emission. This study analyzes the atomic jet and molecular outflow in the Class I protostar, TMC1A to characterize morphology and id…
View article: Small and Large Dust Cavities in Disks around Mid-M Stars in Taurus
Small and Large Dust Cavities in Disks around Mid-M Stars in Taurus Open
High angular resolution imaging by Atacama Large Millimeter/submillimeter Array (ALMA) has revealed the near universality and diversity of substructures in protoplanetary disks. However, disks around M-type pre-main-sequence stars are stil…
View article: JWST MIRI MRS Images of Disk Winds, Water, and CO in an Edge-on Protoplanetary Disk
JWST MIRI MRS Images of Disk Winds, Water, and CO in an Edge-on Protoplanetary Disk Open
We present JWST MIRI MRS observations of the edge-on protoplanetary disk around the young subsolar-mass star Tau 042021, acquired as part of the Cycle 1 GO program “Mapping Inclined Disk Astrochemical Signatures.” These data resolve the mi…
View article: JWST MIRI MRS Images Disk Winds, Water, and CO in an Edge-On Protoplanetary Disk
JWST MIRI MRS Images Disk Winds, Water, and CO in an Edge-On Protoplanetary Disk Open
We present JWST MIRI MRS observations of the edge-on protoplanetary disk around the young sub-solar mass star Tau 042021, acquired as part of the Cycle 1 GO program "Mapping Inclined Disk Astrochemical Signatures (MIDAS)." These data resol…
View article: Spectroscopic sizing of interstellar icy grains with JWST
Spectroscopic sizing of interstellar icy grains with JWST Open
View article: Dual-band Observations of the Asymmetric Ring around CIDA 9A: Dead or Alive?
Dual-band Observations of the Asymmetric Ring around CIDA 9A: Dead or Alive? Open
While the most exciting explanation of the observed dust asymmetries in protoplanetary disks is the presence of protoplanets, other mechanisms can also form the dust features. This paper presents dual-wavelength Atacama Large Millimeter/su…
View article: Data from "Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud"
Data from "Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud" Open
Continuum fits images for all disks in our ALMA Cycle 4 Taurus disk survey - see details in Long et al., 2018, ApJ, 869, 17 and Long et al., 2019, ApJ, 882, 49
View article: Data from "Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud"
Data from "Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud" Open
<p>Continuum fits images for all disks in our ALMA Cycle 4 Taurus disk survey - see details in Long et al., 2018, ApJ, 869, 17 and Long et al., 2019, ApJ, 882, 49</p>
View article: Dual-Band Observations of the Asymmetric Ring around CIDA 9A: Dead or Alive?
Dual-Band Observations of the Asymmetric Ring around CIDA 9A: Dead or Alive? Open
While the most exciting explanation of the observed dust asymmetries in protoplanetary disks is the presence of protoplanets, other mechanisms can also form the dust features. This paper presents dual-wavelength Atacama Large Millimeter/su…
View article: A JWST inventory of protoplanetary disk ices
A JWST inventory of protoplanetary disk ices Open
Ices are the main carriers of volatiles in protoplanetary disks and are crucial to our understanding of the protoplanetary disk chemistry that ultimately sets the organic composition of planets. The Director’s Discretionary-Early Release S…
View article: A JWST inventory of protoplanetary disk ices: The edge-on protoplanetary disk HH 48 NE, seen with the Ice Age ERS program
A JWST inventory of protoplanetary disk ices: The edge-on protoplanetary disk HH 48 NE, seen with the Ice Age ERS program Open
Ices are the main carriers of volatiles in protoplanetary disks and are crucial to our understanding of the chemistry that ultimately sets the organic composition of planets. The ERS program Ice Age on the JWST follows the ice evolution th…