CHIRON
Read more about NOIRLab's instruments and other capabilities in the Capabilities brochure.
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CHIRON Instrument | |
Observing | ||
Software Documentation | ||
Technical Documents & Memos | ||
Electronics | ||
Papers on CHIRON |
CHIRON is a highly stable cross-dispersed echelle spectrometer at the SMARTS 1.5-meter telescope. It is fed by fiber and intended primarily for precise radial velocities.
- Spectral resolution R~80000 (with image slicer: normal or Iodine mode) or R~25000 (fiber mode) or R~140000 (narrow-slit, bright stars), 3-pixel sampling
- Spectral range 410-870 nm, fixed
- Total efficiency ~6%
CHIRON is operational since 2011B. After upgrade, it is back in service since March 2012.
CHIRON replaces the previous spectrometer at 1.5m, Fiber Echelle.
Instrument
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Observing
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Software Documentation
- CHIRON Quick software troubleshooting guide (January 31, 2011) [PDF, 0.6M]
- CHIRON GUI User's Manual (July 2015) [PDF, 1.3M]
- Administrator's Manual. Software Architecture (July 2015) [PDF, 1M]
- PanView configuration (August 2011) [PDF, 884K]
- CHIRON scripting reference (January 2011) [PDF, 858K]
- CTIO 60 inches CHIRTEMP (CHIRON) (January 2012) [PDF, 1.2M]
- CHIRON basic data reduction (October 26, 2011) [PDF, 573K]
- F. Walter's data reduction package for CHIRON.
Technical Documents & Memos
- Recovery of the stuck slicer motor (Aug 15, 2015) [PDF, 185K]
- Fiber alignment in FEM (Oct 2020) [PDF, 1.1MB]
- Exposure meter description (July 27, 2015) [PDF, 183K]
- New CHIRON shutter (Sep. 9, 2013) [PDF, 508kB]
- Efficiency measurements: August 1, 2013 and June 12, 2012
- CHIRON guider (April 18, 2013) [PDF]
- CHIRON temperature control (June 14, 2012) [PDF]
- Performance of the CHIRON CCD detector with the Torrent controller (April 3, 2012) [PDF, 550KB]
- CHIRON efficiency tests (June 15, 2011) [PDF, 1.2MB]
- CHIRON CCD detector: tests in March 2011 (March 28, 2011) [PDF, 1.1MB]
- CHIRON efficiency (March 28, 2011) [PDF, 278KB]
- Commissioning run: March 9-14, 2011 by D. Fischer & M. Giguere (March 15, 2011) [PDF, 2.8MB]
- Instrument manual (V.2, May 25, 2011) [PDF, 801kB]
- CHIRON instrument description (V.2, May 6, 2011) [PDF, 3.4MB]
- CHIRON in pictures by AJ Riggs (Jan 23 2011) [PDF, 8M]
- CHIRON: Commissioning tests and alignment by J. Spronck, Ch. Schwab, M. Giguere (Feb 7, 2011) [PDF, 367K]
Electronics
- Hardware connections description (v.9.7, Sep 2019) [PDF, 1M]
- CHIRON Motor Control (January 31, 2011) [PDF, 1.9M]
- CCD temperature control (June 2011) [PDF, 1M]
- Comparison lamp automation (March 16, 2011) [PDF, 784KB] and schematics
- Guider camera and PC instructions (October 2, 2008) (text)
- Electronic schemes:
Electronic box on the telescope
RTD temperature sensors and iodine cell motor
CHIRON focus and slicer motor control - Access Enclosure temperature controller (Omega)
- Zemax file sp4fb.zmx
Papers on CHIRON
- Schwab, Ch., Spronck, J., Tokovinin, A., Szymkowiak, A., Giguere, M., Fisher, D. Performance of the CHIRON high-resolution Echelle spectrograph. 2012, Proc. SPIE, 8446, paper 8446-9. [PDF, 1.6M]
- Spronck, J., Schwab, C., Tokovinin, A., Giguere, M., Szymkowiak, A., Fischer, D. Chiron - A Fiber-fed High-resolution Echelle Spectrometer At CTIO 1.5m Telescope May 2011, AAS Meeting #218, #409.03 [PDF, 12M]
- Schwab C., Spronck J.F.P., Tokovinin A., Fischer D. Design of the CHIRON high-resolution spectrometer at CTIO 2010, Proc. SPIE, 7735, paper 7735-159 [PDF, 1.3M]
- Tokovinin A., Fischer D., Schwab, Ch., Spronck J.F.P. CHIRON - new planet-finding spectrometer. Presentation at the conference Astronomy of Exoplanets with Precise Radial Velocities, PSU, Aug 16-19 2010 , [PDF, 885K]
- Tokovinin, A., Fischer, D.A., Bonati, M., Giguere, M.J., Moore, P., Schwab, Ch., Spronck, J. F. P., Szymkowiak, A. CHIRON - A Fiber Fed Spectrometer for Precise Radial Velocities. 2013, PASP, 125, 1336 [PDF, 1.1M]
- Brewer, J. M., Giguere, M., Fischer, D. A. CHIRON TOOLS: Integrated Target Submission, Scheduling and Observing Systems for a High-Resolution Fiber-Fed Spectrograph. 2014, PASP, 126, 48
Refereed publications using CHIRON data
Publications after 2017: list maintained by SMARTS (GSU)
Older publications:
- Ingleby, L., Calvet, N., Herczeg, G. et al. 2013, ApJ, 767, A112
- Ratajczak, M., Helminiak, K. G., Konacki, M. & Jordan, A. 2013, MNRAS, 433, 2357
- Shore, S. N., De Gennaro Aquino, I., Schwarz, G. J. et al. 2013, A&A, 553, A123
- Tokovinin, A. 2013, AJ, 145, 76
- Shivvers, I., Bloom, J. S., Richards, J. W. 2014, MNRAS, 441, 343
- Surina, F., et al. 2014, AJ, 147, 107
- Jones, M. I., Jenkins, J. S., Bluhm, P. et al. 2014, A&A., 566, 113
- Jones, M. I., Jenkins, J. S., Rojo, P. et al. 2015A&A...573A...3J
- Soto, M.G., Jenkins, J.S., Jones, M.I. 2015, MNRAS, 451, 3131
- Bowler, B.P., Shkolnik, E.L., Liu, M.C. et al. 2015, ApJS, 806, 62
- Waisberg, I.R., Romani, R.W. 2015, ApJ, 805, 18
- Mennickent, R.E., Djurasevic, G., Cabezas, M. et al. 2015, MNRAS, 448, 1137
- Mehner, A., Davidson, K., Humphreys, R.M. et al. 2015, A&A, 578, 122
- Jones, M., Jenkins, J. et al. 2015, A&A, 580, 14
- Hinkel, N.R. et al. 2015, AJ, 150, 169
- Tokovinin, A. 2015, AJ, 150, 177
- Berta-Thompson, Z. K.; Irwin, J., Charbonneau, D. et al. 2015Natur.527..204B
- Richardson, N.D. Gies, D. R., Gull, T. R., Moffat, A. F. J. & St-Jean, L. 2015, AJ, 150, 109
- Munari, F. & Walter, F. 2016, MNRAS, 455, L57
- Richardson, N.D. et al. 2016, MNRAS, 455, 244
- Richardson, N. D., Madura, T. I., St-Jean, L. et al. 2016MNRAS.461.2540R
- Gullikson, K. Kraus, A., Dodson-Robinson, S. Jaffe, D. et al. 2016, AJ, 151, 3
- Bond, H.E., Ciardullo, R., Siegel, M.H. 2016, AJ, 151, 40
- Fischer, D.A. et al. 2016, PASP, 128, 6001
- Giguere, M.J. et al. 2016, ApJ, 824, 150
- Teodoro, M. et al. 2016, ApJ, 819, 131
- Tokovinin, A. 2016, AJ, 152, 11
- Tokovinin, A. 2016, AJ, 152, 10
- Gullikson, K., Kraus, A., Dodson-Robinson, S. 2016, AJ, 152, 40
- Jones, M. I., Jenkins, J. S., Brahm, R. et al. 2016, A&A, 590, 38
- Johnson, M. C., Endl, M. Cochran, W. D. et al. 2016ApJ...821...74J
- Bluhm, P., Jones, M. I., Vanzi, L. et al. 2016, A&A, 593, 133
- Ratajczak, M. et al. 2016, MNRAS, 461, 2234
- Schaefer, G. H., Hummel, C. A., Gies, D. R. et al. 2016AJ....152..213S
- Lester, K. V., Gies, D. R., Guo, Zhao 2016AJ....152..194L
- Kane, S. R.; Wittenmyer, R. A., Hinkel, N. R. et al. 2016ApJ...821...65K
- Richardson, N. D.; Russell, C. M. P.; St-Jean, L. et al. 2017MNRAS.471.2715R
- Buysschaert, B., Neiner, C., Richardson, N. D. et al. 2017A&A...602A..91B
- Linford, J. D., Chomiuk, L., Nelson, T. et al. 2017ApJ...842...73L
- Buysschaert, B., Neiner, C., Richardson, N. D. et al. 2017A&A...602A..91B
- Jones, M. I., Brahm, R., Wittenmyer, R. A. et al. 2017A&A...602A..58J
- Mayer, P., Harmanec, P., Chini, R. et al. 2017A&A...600A..33M
- Tokovinin, A., Latham, D. W. 2017ApJ...838...54T
- Li, C.-J., Chu, Y.-H., Gruendl, R. A. et al. 2017ApJ...836...85L
- Wittenmyer, R. A.; Jones, M. I., Zhao, J. et al. 2017AJ....153...51W
- Khokhlov, S. A., Miroshnichenko, A. S., Mennickent, R. et al. 2017ApJ...835...53K
The design and construction of CHIRON was supported by the National Science Foundation under the ARRA AST-0923441.
Updated on January 18, 2023, 9:32 am