SIMBAD references

Kamil Hornoch, Astronomical Institute, Ondrejov; Peter Garnavich, Colin Littlefield, and Nancy Paul, University of Notre Dame; and Samia Bouzid, Rutgers University, report their discovery of two apparent novae in the galaxy M81 on a co-added 1200-s R-band CCD frame taken by Garnavich, Littlefield, Paul, and Bouzid with the Vatt4k imager on the 1.83-m Vatican Advanced Technology Telescope on June 11.164 UT. The new objects are visible on single 200-s images used for the co-added image. Narrow-band H_alpha CCD frames taken by Daniel J. Hurley, University College, Cork; and Hannu Parviainen and Hans J. Deeg, Instituto de Astrofisica de Canarias and Universidad de La Laguna, with the 2.54-m Isaac Newton Telescope (+ WFC) at La Palma on June 14.893 and 15.920 confirmed the presence of both new objects, which are not present on numerous archive images from the 2.54-m Isaac Newton Telescope, the 4.2-m William Herschel Telescope, the 4-m Mayall telescope, and the 8.2-m Subaru telescope, down to limiting magnitudes as faint as Sloan r' = 23.3, R = 23.4, V = 23.8, and [H_alpha] = 22.3. M81N 2010-06a is located at R.A. = 9:55:48.85, Decl. = +69:03:26.4 (equinox 2000.0), which is 84".0 east and 28".7 south of the center of M81. Available R-band and [H_alpha] magnitudes for M81N 2010-06a, measured by Hornoch: June 11.164 UT, R = 21.2 ± 0.15 (Garnavich, Littlefield, Paul, and Bouzid, 1.83-m telescope); 14.893, [H_alpha] = 21.1 ± 0.2 (Hurley, Parviainen, and Deeg, 2.54-m telescope); 15.920, [H_alpha] = 21.3 ± 0.15 (Hurley, Parviainen, and Deeg). M81N 2010-06b is located at R.A. = 9:55:19.39, Decl. = +69:06:20.6 (equinox 2000.0), which is 73".8 west and 145".5 north of the center of M81. Available magnitudes for M81N 2010-06b: June 11.164, R = 21.9 ± 0.2 (Garnavich, Littlefield, Paul, and Bouzid); 14.893, [H_alpha] = 20.0 ± 0.1 (Hurley, Parviainen, and Deeg; 15.920, [H_alpha] = 19.9 ± 0.1 (Hurley, Parviainen, and Deeg).