Pith. sign in

REVIEW 1 cited by

Chemical Evolution in VeLLOs

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 0712.1866 v2 pith:6RVIPSGA submitted 2007-12-12 astro-ph

classification astro-ph
keywords accretionobjectsvellosbeenchemicaldifferentevolutionmassive
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

A new type of object called "Very Low Luminosity Objects (VeLLOs)" has been discovered by the Spitzer Space Telescope. VeLLOs might be substellar objects forming by accretion. However, some VeLLOs are associated with strong outflows, indicating the previous existence of massive accretion. The thermal history, which significantly affects the chemistry, between substellar objects with a continuous low accretion rate and objects in a quiescent phase after massive accretion (outburst) must be greatly different. In this study, the chemical evolution has been calculated in an episodic accretion model to show that CO and N2H+ have a relation different from starless cores or Class 0/I objects. Furthermore, the CO2 ice feature at 15.2 micron will be a good tracer of the thermal process in VeLLOs.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. IPA: Morphology and Kinematics of Molecular Hydrogen Winds in Five Young Protostars across the Mass Spectrum Observed with JWST

    astro-ph.SR 2026-08 conditional novelty 6.0 of 10

    Five protostars from 0.16 to 10,000 solar luminosities show nested, onion-like H2 outflows, with higher-excitation gas more collimated and faster, consistent with MHD disk wind launching.

Pith tools