Public
- Public
- Groups
- Popular
- People

Conversation

Notices

Santiago (santiago@mastodon.uy)'s status on Wednesday, 07-Feb-2024 09:33:21 UTC Santiago
in reply to
- djpeluca
@djpeluca conozco a Ana Mosquera

In conversation about 10 months ago from mastodon.uy permalink
- djpeluca (djpeluca@mastodon.uy)'s status on Wednesday, 07-Feb-2024 09:33:23 UTC djpeluca
  
  Viste este disco protoplanerario @santiago Dracula’s Chivito https://arxiv.org/abs/2402.01063 (autores del paper de Transilvania y Uruguay)
  In conversation about 10 months ago permalink
  Attachments
  1. Dracula's Chivito: discovery of a large edge-on protoplanetary disk with Pan-STARRS
    
    We report the serendipitous discovery of a large edge-on protoplanetary disk associated with the infrared source IRAS 23077+6707. The disk's apparent size in the Pan-STARRS (PS1) images is ~11", making this one of the largest known disks on the sky. It is likely a young system, still surrounded by the envelope which is very faint but still visible in the PS1 images in the northern part (alternatively this structure could be filaments from the disk itself). We use the PS1 magnitudes and other available photometric data to construct the spectral energy distribution (SED) of the disk. An optical spectrum indicates that the obscured star is hot, most likely late A. We adopt a distance of 300 pc for this object based on Gaia DR3 extinctions. We model the system using the HOCHUNK3D radiative transfer software and find that the system is consistent with a hot star of effective temperature 8000 K surrounded by a disk of size 1650 AU and mass 0.2 M_solar at inclination 82 degrees.

Public

Conversation

Notices

Feeds