To submit an abstract for the meeting, you must first log into the system using your AAS Login.

• If you are a member of the AAS you should already have a login.
• If you are not a member of the AAS you may create an AAS Login if you do not already have one.

• Any member or affiliate of the AAS may submit an abstract.
• The abstract must be submitted through the online system.
• A nonmember may submit an abstract.
• Pending members of the AAS may submit an abstract. Please contact the Membership Department to submit your membership applications.
• Presenters must be listed as the first author on the paper.
• Presenting/first author must register for the meeting.
• Presenting/first author must be the presenter at the meeting.

Abstracts Per Meeting

• You may submit up to two (2) research contributed abstracts for this meeting.
• There is no limit to the number of Regular or Late abstracts that you may co-author.

Contributed Presentations

• Research Contributed Oral Presentations
• Research Contributed Poster Presentations

Regular oral presentations will be arranged by topic and are scheduled appropriately.

Poster presentations allow far more time and flexibility than the corresponding oral presentations. Posters are arranged by topic and will be uploaded as PDFs online.

Abstracts must be submitted through the presenting author's AAS record. Co-authors are not eligible to substitute as the presenting author. The presenting author will be notified once the schedule has been determined.

Abstract Login Instructions

To submit an abstract, you must first log into the system using your AAS Login.

• If you are a member of the AAS you should already have a login. 
• If you are not a member of the AAS you may create an AAS Login if you do not already have one.

Abstract Form Details

The form contains instructions on the various steps required to complete a submission.

• The abstract must be complete and submitted by the deadline, 11:59 pm ET, 9 December 2020.
• The abstract body text can be a maximum of 12,000 characters (which includes letters, numbers, punctuation, spacing, returns, and symbols/special characters).
• To enter co-authors, you must have the following: full first and last name, e-mail address, and affiliation.
• You can continue to make changes to your abstract before the deadline. To edit an abstract, sign back in and find the abstract you submitted and make changes. Please remember to resubmit once you have made changes.

To switch the presenting author to a co-author you must submit a new abstract by logging in as the new presenting author.

Poster Presentations

You will be able to upload a PDF presentation. Instructions will be provided in confirmation of acceptance notifications. 

Oral Presentations 

To avoid too many oral sessions running simultaneously, the number of oral presentation time slots is limited. Oral presentations may be changed to posters if there are no remaining slots. All authors whose abstracts are changed will be notified. Instructions on oral presentation will be provided in confirmation of acceptance notifications.

The meeting and abstract schedule are published in various formats:

• Online Abstracts — Available prior to the meeting; includes full abstract text.
• Astrophysics Data System (ADS) — Abstracts are sent to ADS and typically published two weeks prior to the meeting.