M. C. H. Wright
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View article: The 4–400 GHz Survey for the 32 Class II Disks in the Taurus Molecular Cloud
The 4–400 GHz Survey for the 32 Class II Disks in the Taurus Molecular Cloud Open
We have compiled the ∼4–400 GHz broad spectra of 32 Class II protoplanetary disks (PPDs) in the Taurus-Auriga region, which represents the brightest one-third of sources detected in the submillimeter band in this region. The spectra at >20…
View article: The 4-400 GHz Survey for the 32 Class II Disks in the Taurus Molecular Cloud
The 4-400 GHz Survey for the 32 Class II Disks in the Taurus Molecular Cloud Open
We have compiled the $\sim$4-400 GHz broad spectra of 32 Class II protoplanetary disks in the Taurus-Auriga region, which represents the brightest one-third of sources detected in the submillimeter band in this region. The spectra at >20 G…
View article: SMA 200–400 GHz Survey for Dust Properties in the Icy Class II Disks in the Taurus Molecular Cloud
SMA 200–400 GHz Survey for Dust Properties in the Icy Class II Disks in the Taurus Molecular Cloud Open
We present a new Submillimeter Array survey of 47 Class II sources in the Taurus–Auriga region. Our observations made 12 independent samples of flux densities over the 200–400 GHz frequency range. We tightly constrained the spectral indice…
View article: SMA 200-400 GHz Survey for Dust Properties in the Icy Class II Disks in the Taurus Molecular Cloud
SMA 200-400 GHz Survey for Dust Properties in the Icy Class II Disks in the Taurus Molecular Cloud Open
We present a new SMA survey of 47 Class II sources in the Taurus-Auriga region. Our observations made 12 independent samples of flux densities over the 200-400 GHz frequency range. We tightly constrained the spectral indices of most source…
View article: An Ionized Outflow in Orion-KL Source I?
An Ionized Outflow in Orion-KL Source I? Open
We present images at 6 and 14 GHz of Source I (SrcI) in the Kleinmann–Low Nebula in Orion. At higher frequencies, from 43 to 340 GHz, images of this source are dominated by thermal emission from dust in a 100 au diameter circumstellar disk…
View article: An ionized outflow in Orion-KL source I?
An ionized outflow in Orion-KL source I? Open
We present images at 6 and 14 GHz of Source I in Orion-KL. At higher frequencies, from 43 to 340 GHz, images of this source are dominated by thermal emission from dust in a 100 AU diameter circumstellar disk, but at 6 and 14 GHz the emissi…
View article: Cuspy dark matter density profiles in massive dwarf galaxies
Cuspy dark matter density profiles in massive dwarf galaxies Open
Rotation curves of galaxies probe their total mass distributions, including dark matter. Dwarf galaxies are excellent systems to investigate the dark matter density distribution, as they tend to have larger fractions of dark matter compare…
View article: Structure of the Source I Disk in Orion-KL
Structure of the Source I Disk in Orion-KL Open
This paper analyses images from 43 to 340 GHz to trace the structure of the Source I (SrcI) disk in Orion-KL with ∼12 au resolution. The data reveal an almost edge-on disk with an outside diameter ∼100 au, which is heated from the inside. …
View article: Small Protoplanetary Disks in the Orion Nebula Cluster and OMC1 with ALMA
Small Protoplanetary Disks in the Orion Nebula Cluster and OMC1 with ALMA Open
The Orion Nebula Cluster (ONC) is the nearest dense star-forming region at ∼400 pc away, making it an ideal target to study the impact of high stellar density and proximity to massive stars (the Trapezium) on protoplanetary disk evolution.…
View article: Small Protoplanetary Disks in the Orion Nebula Cluster and OMC1 with ALMA
Small Protoplanetary Disks in the Orion Nebula Cluster and OMC1 with ALMA Open
This is a supplement to 'Small Protoplanetary Disks in the Orion Nebula Cluster and OMC1 with ALMA', Otter and Ginsburg et al 2021, ApJ. All the code for this work can be found in the github repo: https://github.com/jaotter/summer_research…
View article: OMC-1 dust polarization in ALMA Band 7: diagnosing grain alignment mechanisms in the vicinity of Orion Source I
OMC-1 dust polarization in ALMA Band 7: diagnosing grain alignment mechanisms in the vicinity of Orion Source I Open
We present ALMA Band 7 polarization observations of the OMC-1 region of the Orion molecular cloud. We find that the polarization pattern observed in the region is likely to have been significantly altered by the radiation field of the >…
View article: NGC 7538 IRS1—an O Star Driving an Ionized Jet and Giant N–S Outflow
NGC 7538 IRS1—an O Star Driving an Ionized Jet and Giant N–S Outflow Open
NGC 7538 IRS 1 is a very young embedded O star driving an ionized jet and accreting mass with an accretion rate >10 −4 yr −1 , which is quenching the hypercompact H ii region. We use SOFIA GREAT data, Herschel PACS and SPIRE archive data, …
View article: Observations of the Orion Source I Disk and Outflow Interface
Observations of the Orion Source I Disk and Outflow Interface Open
We imaged the continuum and molecular line emission from Orion Source I (SrcI) with up to 30 mas (12 au) resolution at 43, 99, 223, and 340 GHz in an attempt to probe the structure and chemistry of the circumstellar disk and bipolar outflo…
View article: Filamentary Accretion Flows in the Infrared Dark Cloud G14.225–0.506 Revealed by ALMA
Filamentary Accretion Flows in the Infrared Dark Cloud G14.225–0.506 Revealed by ALMA Open
Filaments are ubiquitous structures in molecular clouds and play an important role in the mass assembly of stars. We present results of dynamical stability analyses for filaments in the infrared dark cloud G14.225−0.506, where a delayed on…
View article: keflavich/Orion_ALMA_2016.1.00165.S: Resubmission
keflavich/Orion_ALMA_2016.1.00165.S: Resubmission Open
Papers on and data from the Orion ALMA Long-Baseline project 2016.1.00165.S. First paper was published in 2018: https://ui.adsabs.harvard.edu/#abs/2018ApJ...860..119G/abstract Second paper published in 2019 (no URL yet)
View article: Orion Long Baseline: Disk kinematics and salty disk
Orion Long Baseline: Disk kinematics and salty disk Open
Papers on and data from the Orion ALMA Long-Baseline project 2016.1.00165.S. First paper was published in 2018: https://ui.adsabs.harvard.edu/#abs/2018ApJ...860..119G/abstract Second paper published in 2019: https://ui.adsabs.harvard.edu/a…
View article: The first detection of neutral hydrogen in emission in a strong spiral lens
The first detection of neutral hydrogen in emission in a strong spiral lens Open
We report HI observations of eight spiral galaxies that are strongly lensing background sources. Our targets were selected from the Sloan WFC (Wide Field Camera) Edge-on Late-type Lens Survey (SWELLS) using the Arecibo, Karl G. Jansky Very…
View article: Alma Polarization Measurements Towards Sgr A* (Poster)
Alma Polarization Measurements Towards Sgr A* (Poster) Open
We have observed linear polarization of the Sgr A* at band 3, 6, 7, 8, and 9 using ALMA. I will outline our method, and compare our measurements with the records taken since 2005 by Geoffrey Bower and Dan Marrone.
View article: ALMA Images of the Orion Hot Core at 349 GHz
ALMA Images of the Orion Hot Core at 349 GHz Open
We present ALMA images of the dust and molecular line emission in the Orion Hot Core at 349 GHz. At 0.″2 angular resolution the images reveal multiple clumps in an arc ∼1″ east of Orion Source I, the protostar at the center of the Kleinman…
View article: ALMA OBSERVATIONS OF ORION SOURCE I AT 350 AND 660 GHz
ALMA OBSERVATIONS OF ORION SOURCE I AT 350 AND 660 GHz Open
Orion Source I (“SrcI”) is the protostar at the center of the Kleinmann-Low Nebula. ALMA observations of SrcI with 0.″2 angular resolution were made at 350 and 660 GHz to search for the H26 α and H21 α hydrogen recombination lines and to m…
View article: Linearly polarized millimeter and submillimeter continuum\n emission of Sgr A* constrained by ALMA
Linearly polarized millimeter and submillimeter continuum\n emission of Sgr A* constrained by ALMA Open
\n Aims. Our aim is to characterize the polarized continuum emission\n properties including intensity, polarization position angle, and polarization percentage\n of Sgr A* at ~100 (3.0\n mm), ~230 (1.3 mm),\n ~345 (0.87 mm),\n ~500 (0.6 mm…
View article: PERSISTENT ASYMMETRIC STRUCTURE OF SAGITTARIUS A* ON EVENT HORIZON SCALES
PERSISTENT ASYMMETRIC STRUCTURE OF SAGITTARIUS A* ON EVENT HORIZON SCALES Open
The Galactic Center black hole Sagittarius A* (Sgr A*) is a prime observing target for the Event Horizon Telescope (EHT), which can resolve the 1.3 mm emission from this source on angular scales comparable to that of the general relativist…
View article: THE CARMA PAIRED ANTENNA CALIBRATION SYSTEM: ATMOSPHERIC PHASE CORRECTION FOR MILLIMETER WAVE INTERFEROMETRY AND ITS APPLICATION TO MAPPING THE ULTRALUMINOUS GALAXY ARP 193
THE CARMA PAIRED ANTENNA CALIBRATION SYSTEM: ATMOSPHERIC PHASE CORRECTION FOR MILLIMETER WAVE INTERFEROMETRY AND ITS APPLICATION TO MAPPING THE ULTRALUMINOUS GALAXY ARP 193 Open
Phase fluctuations introduced by the atmosphere are the main limiting factor in attaining diffraction limited performance in extended interferometric arrays at millimeter and submillimeter wavelengths. We report the results of C-PACS, the …
View article: Resolved magnetic-field structure and variability near the event horizon of Sagittarius A*
Resolved magnetic-field structure and variability near the event horizon of Sagittarius A* Open
Magnetic fields near the event horizon Astronomers have long sought to examine a black hole's event horizon—the boundary around the black hole within which nothing can escape. Johnson et al. used sophisticated interferometry techniques to …
View article: ALMA and VLA measurements of frequency-dependent time lags in Sagittarius A*: evidence for a relativistic outflow
ALMA and VLA measurements of frequency-dependent time lags in Sagittarius A*: evidence for a relativistic outflow Open
Radio and mm-wavelength observations of Sagittarius A* (Sgr A*), the radio\nsource associated with the supermassive black hole at the center of our Galaxy,\nshow that it behaves as a partially self-absorbed synchrotron-emitting source.\nTh…