Most graduate students in the astronomy program are supported by graduate assistantships. Students often start as Teaching Assistants (TAs) in their first year, and then become Research Assistants (RAs) in subsequent years, but other arrangements are also possible.
Astronomy graduate assistantships are half-time, and students are expected to work an average of 20 hours per week during the academic year. This is a point of university policy — assistantships are provided so students can support themselves while furthering their education, and a student working more than 20 hours per week generally does not have enough time to study. Students may work full time when classes are not in session; see the discussion of summer salary for details.
TAs hold 9-month appointments, while RAs hold 11-month appointments. Nonetheless, both receive their pay in 24 installments over a 12-month period.
Graduate assistants are technically not employees and do not accumulate vacation or sick leave. A TA gets three months of vacation during the summer, while an RA gets one month of vacation per year, to be scheduled in consultation with their supervisor.
Teaching assistants help teach the basic undergraduate astronomy classes. The work involved depends on the type of class. TAs for lecture classes grade homework, quizzes and exams, and hold office hours to help undergraduates; they may occasionally teach classes and undertake other teaching-related duties. TAs for lab classes help during evening observing trips in addition to grading and holding office hours.
TAs are paid on a nine-month basis. This means that they are expected to work about 20 hours a week during the period from the "faculty duty date" in mid-August until the spring semester ends the following May; they have no duties during the summer. Teaching Assistantships are handled via the Department of Physics and Astronomy in Watanabe Hall rather than via the Institute for Astronomy.
Research assistants help IfA astronomers with their research programs. Their work may involve observing, data reduction, instrument construction or library research; some senior students are able to link their dissertation research with that performed as a research assistant.
RAs are paid on an eleven-month basis. This means they are expected to work 20 hours per week, with one month's free time per year (usually in the summer). Research Assistantships usually derive from NASA or NSF grants to individual faculty members and are handled via the administrative office of the Institute for Astronomy.
Graduate assistants are paid according to a 14-step pay schedule approved by the Board of Regents. All astronomy graduate assistants are appointed at step 14. Per annum, RAs work 11 months while TAs work 9 months, so the basic annual incomes for RAs and TAs are different. However, TAs are allowed one additional month of full time work during the summer, so annual incomes with summer "overload" are roughly comparable.
Stipends are subject to federal and state income tax, and these are deducted automatically before payments are made. Students participating in state health plans will have additional deductions. As an illustration, the table below shows the annual gross and net (take-home) pay for a graduate assistant who claims one tax exemption and joins a basic medical plan. Note that the take-home figures use tax rates and medical plan costs for 2007, and that all amounts have been rounded to the nearest dollar; "your mileage may vary".
|GRADUATE ASSISTANTSHIP STIPENDS|
|Research Assistant||Teaching Assistant|
|Basic stipend||$25,902 ($20,051 net)
= 24 × $1079
|$22,140 ($17,118 net)
= 24 × $923
|Summer overload||$4,709 ($3,347 net)
= 2 × $2,355
|$9,840 ($6,949 net)
= 4 × $2,460
|Total stipend||$30,611 ($23,398 net)||$31,980 ($24,068 net)|
Graduate assistants receive a full tuition waiver as well as their stipend. They are, however, still liable for activity and other fees.
Consult the graduate chair for more information.
Students who do not hold assistantships or any other kind of tuition waiver are liable for tuition fees according to the university's fee schedule for graduate students.
Students need to maintain a grade point average (GPA) of at least 3.0 (B average) in order to hold a graduate assistantship.