Gemini Publications. Dennis Crabtree, Jean-Rene Roy, Xiaoyu Zhang
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1 Gemini Publications Dennis Crabtree, Jean-Rene Roy, Xiaoyu Zhang Gemini Users Meeting June 2007
2 Publication/Citation Tracking Refereed publications are the primary metric for tracking the success of Gemini Productivity is measured by the number of publications; impact by the # of citations Observatory productivity is a function of its age Citation counts to individual papers grows with time as well Impact refers to normalized citations counts Normalize to median AJ paper of same year
3 Digging deeper One can go beyond the basic productivity and impact numbers Productivity by telescope or instrument Productivity efficiency - # of hours to produce a paper Productivity by Gemini partner Impact by Science Ranking Band Impact by Gemini partner Comparison to other observatories Lies, Damned Lies, and
4 360 papers (GN = 67%; GS = 33%) 300 Publications by Telescope As of June 1/ Number of Publications Gemini North Telescope Program execution Gemini South
5 Number of Publications per Year by Telescope Gemini North Gemini South Number of Papers, Year
6 Instruments # papers Hours per paper* T-ReCS (mid IR imager-spectrograph) Hokupa a-36 (adaptive optics imager) OSCIR (mid IR imager) MICHELLE (mid IR imager- spectrograph) GMOS-N N (optical MO/IFU spectrograph) NIRI (near IR imager-spectro spectro)/altair GNIRS (near IR spectrograph) PHOENIX (near IR HiRes spectrograph) GMOS-S S (optical MO/IFU spectrograph) (*)Paper count as of June 4th 2007; hours charged as of end of 2005B
7 Instrument Efficiency T-ReCS is the most efficient Gemini instrument Except for T-ReCST ReCS,, all the most effective instruments (Hokupa a-36, OSCIR, MICHELLE, GMOS-N N are at GN GMOS-N N is quite efficient Why is there such a gap with GMOS-S? S? PHOENIX has been used extensively in classical Classical is less efficient for reasonably well understood reasons
8 Gemini-Keck NIRSPEC Time Twelve nights of NIRSPEC on Keck II In exchange to the long-term loan of the of an 1-51 µm InSb 1024x1024 detector Supported by Tom Geballe and Marianne Takamiya Four block of three nights (12 nights total) spread over 4 semesters in papers published (a few more coming) Titan, T Tauri,, high z, isotopic ratios and abundances Summary: a very efficient trade 7.5 hours per paper!
9 # Papers/Telescope/Year Keck Subaru Gemini VLT CFHT # of Papers Year
10 Productivity (# of papers) CFHT Gemini HST Keck Subaru UKIRT VLT Year
11 Publications per country of first author Through June 1, Number of Publications USA UK Canada Australia Brazil Argentina Chile UofH GemStaff OTHER Country
12 Productivity by Time Source # of Papers Papers through the end of 2005 AR AU BR CA CH CM DD DS GS IN KE PB SV UH UK US Source of Time
13 Impact per Paper by Time Source Median Impact Average Impact Impact Papers through the end of 2005 AR AU BR CA CH CM DD DS GS IN KE PB SV UH UK US Type of Time
14 Productivity by Time Type # of Papers Papers through the end of 2005 CL CM DD DS IN PB SRB1 SRB2 SRB3 SRB4 SV Type of Time
15 Impact per Paper by Time Type Median Impact Average Impact Impact Papers through the end of 2005 CL CM DD DS IN PB SRB1 SRB2 SRB3 SRB4 SV Type of Time
16 Median Impact per Paper CFHT Gemini HST Keck Subaru UKIRT VLT Year
17 Average Impact per Paper CFHT Gemini HST Keck Subaru UKIRT VLT Year
18 T-ReCS Impact per Paper by Instrument Median Impact Average Impact Papers through the end of 2005 Altair CIRPASS FLAMINGOS GMOS GNIRS Hokupa'a MICHELLE NIRI OSCIR Phoenix Instrument ACQCAM Impact
19 Authors Title Year Journal Total Ref d Instrument Mode Cites Cites Astier, P Supernova legacy survey 2006 AA GMOS Q Genzel, R The stellar cusp around the supermassive 2003 ApJ Hokupaa DD Schodel, R. + 5 Stellar dynamics in the central arcsecond 2003 ApJ Hokupaa DD Glazebrook, K.+11 A High Abundance of Massive Galaxies 2004 Nature GMOS Q Fox, D The afterglow of GRB and the 2005 Nature GMOS Q Close, L. + 3 Detection of Nine M8.0-L0.5 Binaries 2003 ApJ Hokupaa C Bloom, J Closing in on a short burst progenitor 2006 ApJ GMOS Q Berger, E The afterglow and elliptical host galaxy 2005 Nature GMOS Q LeFloch, E Are the Host of Gamma Ray Bursts 2003 AA Hokupaa Q Juneau, S Cosmic Star Formation History 2005 ApJ GMOS Q Kaspi, V. + 5 A Major Soft Gamma Repeater-like 2003 ApJ NIRI DD Abraham, R The Gemini Deep Deep Survey: I AJ GMOS Q
20 Summary Gemini is producing papers at a reasonable rate for its age Gemini South is lagging a bit Gemini s impact per paper very similar to VLT Lower than Keck papers GMOSs are most productive facility instruments Also highest impact per paper Gemini s TAC system ranks programs by scientific impact Science verification and demo science time produces high impact papers
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