activity
20172023
most citedOrbital and atmospheric characterization of the planet within the gap of the PDS 70 transition disk

263 citations · 385 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.EP2023★ 4 cited

Wavelength-Dependent Extinction and Grain Sizes in Dippers

Michael L. Sitko, Ray W. Russell, Zachary C. Long +8

We have examined inter-night variability of K2-discovered Dippers that are not close to being viewed edge-on, as determined from previously-reported ALMA images, using the SpeX spe…

astro-ph.SR2021★ 7 cited

Variability of Disk Emission in Pre-Main Sequence and related Stars. V. Occultation Events from the innermost disk region of the Herbig Ae Star HD 163296

Monika Pikhartova, Zachary C. Long, Korash D. Assani +8

HD 163296 is a Herbig Ae star that underwent a dramatic 0.8 magnitude drop in brightness in the V photometric band in 2001 and a brightening in the near-IR in 2002. Because t…

astro-ph.EP2018★ 263 cited

Orbital and atmospheric characterization of the planet within the gap of the PDS 70 transition disk

A. Müller, M. Keppler, Th. Henning +43

Aims: We aim to characterize the orbital and atmospheric properties of PDS 70 b, which was first identified on May 2015 in the course of the SHINE survey with SPHERE, the extreme a…

astro-ph.EP2018★ 58 cited

Differences in the gas and dust distribution in the transitional disk of a sun-like young star, PDS 70

Zachary C. Long, Eiji Akiyama, Michael Sitko +22

We present ALMA 0.87 mm continuum, HCO+ J=4--3 emission line, and CO J=3--2 emission line data of the disk of material around the young, Sun-like star PDS 70. These data reveal the…

astro-ph.SR2018★ 18 cited

Variability of Disk Emission in Pre-Main Sequence and Related Stars IV. Investigating the Structural Changes in the Inner Disk Region of MWC 480

Rachel B. Fernandes, Zachary C. Long, Monika Pikhartova +8

We present five epochs of near IR observations of the protoplanetary disk around MWC 480 (HD31648) obtained with the SpeX spectrograph on NASA's Infrared Telescope Facility (IRTF)…

astro-ph.EP2017★ 35 cited

The shadow knows: using shadows to investigate the structure of the pretransitional disk of HD 100453

Zachary C. Long, Rachel B. Fernandes, Michael Sitko +16

We present GPI polarized intensity imagery of HD 100453 in Y-, J-, and K1 bands which reveals an inner gap ( au), an outer disk ( au) with two prominent spiral arms,…