An SMA Molecular Inventory of the Edge-on Protoplanetary Disk Gomez's Hamburger
2026/05/26 by Erin M. Cusson, Lisa Wölfer, Richard Teague +10 · 1 voice
Physics and Astronomy · #astro-ph.EP
paper · pdf · doi:10.3847/1538-4357/ae731e
Abstract
Gomez's Hamburger (IRAS 18059-3211, GoHam) is a massive, edge-on protoplanetary disk that is potentially gravitationally unstable and hosts an overdensity that may be the site of a forming giant planet, making it a particularly interesting source for the study of planet formation in the direct collapse scenario. In this study, we present a molecular inventory of GoHam's disk combining several Submillimeter Array observations for a wideband survey at an angular resolution on the order of ~1 arcsecond. We detect 11 different molecules, including 15 individual lines, and measure their disk-integrated fluxes. We also infer column densities for several species over a range of fixed excitation temperatures. We find that the molecular inventory of GoHam and the inferred column densities for select molecules are broadly consistent with the general population of large protoplanetary disks. We explore the putative gravitational instability (GI) in GoHam's disk via possible enhancements in the gas-phase H2CO abundance, but find no definitive evidence of GI. The results of this study can guide future, higher-resolution studies of GoHam, as well as efforts to characterize the giant protoplanet candidate GoHam b.
Citations
- Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk
- SMA and NOEMA reveal asymmetric sub-structure in the protoplanetary disk of IRAS23077+6707
- The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): V. Protoplanetary gas disk masses
- Dracula's Chivito: discovery of a large edge-on protoplanetary disk with Pan-STARRS
- CASA, the Common Astronomy Software Applications for Radio Astronomy
- A Three Dimensional View of Gomez's Hamburger
- ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT): I. CO, CS, CN, and H2CO around DG Tau B
- Fragmentation favoured in discs around higher mass stars
- Masses and Implications for Ages of Low-Mass Pre-Main Sequence Stars in Taurus and Ophiuchus
- A survey of C2H, HCN, and C18O in protoplanetary disks
- Temperature, Mass and Turbulence: A Spatially Resolved Multi-Band Non-LTE Analysis of CS in TW~Hya
- The Distribution and Excitation of CH3CN in a Solar Nebula Analog
- Observational evidence for two distinct giant planet populations
- The Cologne Database for Molecular Spectroscopy, CDMS, in the Virtual Atomic and Molecular Data Centre, VAMDC
- Gravitational Instabilities in Circumstellar Disks
- Gravitational instabilities in a protosolar-like disc I: dynamics and chemistry
- Very Large Telescope observations of Gomez's Hamburger: Insights into a young protoplanet candidate
- Forming the cores of giant planets from the radial pebble flux in protoplanetary discs
- emcee: The MCMC Hammer
- H2CO in the Horsehead PDR: Photo-desorption of dust grain ice mantles
- Chemistry in a gravitationally unstable protoplanetary disc
- Protoplanetary Disks and Their Evolution
- Probing the mass-loss history of AGB and red supergiant stars from CO rotational line profiles - II. CO line survey of evolved stars: derivation of mass-loss rate formulae
- The effect of gas drag on the growth of protoplanets -- Analytical expressions for the accretion of small bodies in laminar disks
- Exploring the conditions required to form giant planets via gravitational instability in massive protoplanetary discs
- The physical conditions in Gomez's Hamburger (IRAS 18059-3211), a pre-MS rotating disk
- Gomez's Hamburger (IRAS 18059-3211): A pre main-sequence A-type star
- Planetary Formation Scenarios Revistied: Core-Accretion Versus Disk Instability
- Discovery of an Optically Thick, Edge-on Disk around the Herbig Ae star PDS 144N
- An atomic and molecular database for analysis of submillimetre line observations
- Disk Frequencies and Lifetimes in Young Clusters
- The Formation of Planetesimals
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