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1.	Belskaya, IN, et al. (författare) Physical properties of M class asteroids 1996 Ingår i: PLANETARY AND SPACE SCIENCE. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0032-0633. ; 44:8, s. 783-794 Tidskriftsartikel (refereegranskat)abstract The available data on M class asteroids have been collected and analysed. The possible number of M-asteroids in the main asteroid belt larger than 30 km was estimated to be about 90 objects. A list of the 60 asteroids currently classified as M is presente
2.	DAHLGREN, M, et al. (författare) A STUDY OF HILDA ASTEROIDS .1. CCD SPECTROSCOPY OF HILDA ASTEROIDS 1995 Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 302:3, s. 907-914 Tidskriftsartikel (refereegranskat)abstract Reflectance spectra with a wavelength coverage between 4000-9100 Angstrom have been obtained for eight Hilda asteroids with the 2.2m telescope at the European Southern Observatory in Chile. From the obtained spectra we determined the Tholen taxonomy for f
3.	Dahlgren, M, et al. (författare) A study of Hilda asteroids .2. Compositional implications from optical spectroscopy 1997 Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 323:2, s. 606-619 Tidskriftsartikel (refereegranskat)abstract We obtained 49 reflectance spectra of 23 Hilda asteroids in the wavelength ranges 3850-7650 and 3850-10150 Angstrom during two observing runs in 1992. The primitive D-types dominate and comprise 34% of the numbered Hilda asteroids, while 28% and 2% are P
4.	Dahlgren, M, et al. (författare) A study of Hilda asteroids - V. Lightcurves of 47 Hilda asteroids 1998 Ingår i: ICARUS. - : ACADEMIC PRESS INC. - 0019-1035. ; 133:2, s. 247-285 Tidskriftsartikel (refereegranskat)abstract The results of a photometric survey of Hilda asteroids are presented. We have obtained 224 lightcurves of 47 Hilda asteroids. A wide span of rotation periods have been found, ranging from 2.851 to 31 h. However, indications of rotation periods longer than
5.	Dahlgren, M, et al. (författare) A study of Hilda asteroids - VI. Analysis of the lightcurve properties 1999 Ingår i: ICARUS. - : ACADEMIC PRESS INC. - 0019-1035. ; 138:2, s. 259-267 Tidskriftsartikel (refereegranskat)abstract The lightcurves of 47 Hilda asteroids presented in Dahlgren et al, (1998, Icarus 133, 247-285) have been analyzed. The Hilda population has mean lightcurve amplitudes significantly larger than those of main-belt asteroids of similar sizes, This is due to
6.	Erikson, A, et al. (författare) Photometric observations and modelling of the asteroid 85 Io in conjunction with data from an occultation event during the 1995-96 apparition 1999 Ingår i: PLANETARY AND SPACE SCIENCE. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0032-0633. ; 47:3-4, s. 327-330 Tidskriftsartikel (refereegranskat)abstract The asteroid 85 Io has been observed using CCD and photoelectric photometry on 18 nights during its 1995-96 and 1997 apparitions. We present the observed lightcurves, determined colour indices and modelling of the asteroid spin vector and shape. The colou
7.	Erikson, A, et al. (författare) The near-Earth objects follow-up program - III. 3 lightcurves for 12 objects from 1992 and 1995 2000 Ingår i: ICARUS. - : ACADEMIC PRESS INC. - 0019-1035. ; 147:2, s. 487-497 Tidskriftsartikel (refereegranskat)abstract In this paper we present lightcurves and physical parameters for nine near-Earth objects (NEOs) (433 Eros, 1917 Cuyo, 2368 Beltrovata, 3753 Cruithne, 4769 Castalia, 4953 1990 MU, 6491 1991 OA, 1995 EK1, and 1995 FJ) and three Mars crossers (5738 Billpicke
8.	Hahn, G, et al. (författare) The recent orbital history of periodic Comet P/Lagerkvist (1996 R2) 1999 Ingår i: ICARUS. - : ACADEMIC PRESS INC. - 0019-1035. ; 140:2, s. 462-463 Tidskriftsartikel (refereegranskat)abstract Numerical integrations of 99 orbits centered on that of Comet P/Lagerkvist (P/1996R2) and of the original orbit were made 70 years backward in time and 200 years into the future. The integrations show that this comet, belonging to the quasi-Hildas (G. Tan
9.	Hernius, O, et al. (författare) Astrometry of outer Jovian satellites from the Uppsala-ESO survey of asteroids and comets (UESAC) 1996 Ingår i: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - : EDITIONS PHYSIQUE. - 0365-0138. ; 115:2, s. 295-296 Tidskriftsartikel (refereegranskat)abstract In the course of The Uppsala-ESO Survey of Asteroids and Comets astrometric positions of the faint outer Jovian satellites J VI-XIII were obtained from photographic plates and films taken at the European Southern Observatory, La Silla, Chile and at the An
10.	Hernius, O, et al. (författare) UESAC - The Uppsala-ESO survey of asteroids and comets 1997 Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 318:2, s. 631-638 Tidskriftsartikel (refereegranskat)abstract More than 15 000 positions of moving objects have been detected on 74 plates and films obtained at the European Southern Observatory in Chile and the Anglo-Australian Observatory in Australia during Jupiter's oppositions in 1992 and 1993. Two or more posi
11.	Lagerkvist, CI, et al. (författare) A study of Cybele asteroids - I. Spin properties of ten asteroids 2001 Ingår i: ICARUS. - : ACADEMIC PRESS INC. - 0019-1035. ; 149:1, s. 190-197 Tidskriftsartikel (refereegranskat)abstract As a part of an observational program on Cybele asteroids we have obtained lightcurves of 10 of the larger asteroids. In this paper the results are presented for 229 Adelinda, 260 Huberta, 401 Ottilia 420 Bertholda, 466 Tisiphone, 522 Helga, 570 Kythera,
12.	Lagerkvist, CI, et al. (författare) A survey of main-belt asteroids .1. Positions and improved orbital elements for 75 numbered asteroids 1997 Ingår i: ASTRONOMISCHE NACHRICHTEN. - : AKADEMIE VERLAG GMBH. - 0004-6337. ; 318:2, s. 135-139 Tidskriftsartikel (refereegranskat)abstract More than 7000 positions of moving objects have been detected on 33 films obtained with the Schmidt telescope at the European Southern Observatory in Chile during August and September 1995. Tile majority of these asteroids are previously unobserved. This
13.	Lagerkvist, CI, et al. (författare) A survey of main-belt asteroids .2. Positions and improved orbital elements for 62 unnumbered asteroids 1997 Ingår i: ASTRONOMISCHE NACHRICHTEN. - : AKADEMIE VERLAG GMBH. - 0004-6337. ; 318:3, s. 183-186 Tidskriftsartikel (refereegranskat)abstract More than 7000 positions of moving objects were detected on 33 films obtained with the Schmidt telescope at the European Southern Observatory in Chile during August and September 1995. The majority of these asteroids are previously unobserved. This paper
14.	LAGERKVIST, CI, et al. (författare) PHYSICAL STUDIES OF ASTEROIDS .29. PHOTOMETRY AND ANALYSIS OF 27 ASTEROIDS 1995 Ingår i: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - : EDITIONS PHYSIQUE. - 0365-0138. ; 113:1, s. 115-129 Tidskriftsartikel (refereegranskat)abstract In this paper photometry and analysis of 27 asteroids are presented. For the asteroids 21 Lutetia, 23 Thalia, 250 Bettina and 135 Hertha spin vector determinations were made. For asteroid 99 Dike we derived a rotation period of 10.35 hours and for 1280 Ba
15.	Lagerkvist, CI, et al. (författare) Physical studies of asteroids .30. The asteroid 153 Hilda 1995 Ingår i: EARTH MOON AND PLANETS. - : KLUWER ACADEMIC PUBL. - 0167-9295. ; 71:3, s. 189-194 Tidskriftsartikel (refereegranskat)abstract The asteroid 153 Kilda was studied by photometric, spectroscopic and polarimetric observations during the apparition in 1992. The rotation period was determined to 5.11 hours with a lightcurve amplitude of 0.05 magnitudes. From our spectrum we find 153 Hi
16.	Lagerkvist, CI, et al. (författare) Physical studies of asteroids - XXXIII. The spin rate of M-type asteroids 1998 Ingår i: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - : E D P SCIENCES. - 0365-0138. ; 131:1, s. 55-62 Tidskriftsartikel (refereegranskat)abstract The results from photometric lightcurve observations of nine M-type asteroids are presented. New rotation periods were determined for 6 asteroids: 217 Eudora (12.54 h), 322 Phaeo (17.56 h), 572 Rebekka (5.65 h), 757 Portland (6.58 h), 857 Glasenappia (8.2
17.	Lagerkvist, CI, et al. (författare) Spin rates of asteroids 1996 Ingår i: EARTH MOON AND PLANETS. - : KLUWER ACADEMIC PUBL. - 0167-9295. ; 72:1-3, s. 219-223 Tidskriftsartikel (refereegranskat)abstract The Asteroid Photometric Catalogue was used to redetermine the rotation periods of all asteroids with data in the catalogue. The quality of the period determinations was divided into five groups. The total number of asteroids studied were 710 and 225 of t
18.	Lagerkvist, CI, et al. (författare) The number density of main-belt asteroids 1997 Ingår i: ASTRONOMISCHE NACHRICHTEN. - : WILEY-V C H VERLAG GMBH. - 0004-6337. ; 318:6, s. 391-393 Tidskriftsartikel (refereegranskat)abstract In this paper we have studied how the number density of asteroids varies as a function of the mean distance from the sun.
19.	Lagerkvist, CI, et al. (författare) The orbital history of two periodic comets encountering Saturn 2000 Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER-VERLAG. - 0004-6361. ; 362:1, s. 406-409 Tidskriftsartikel (refereegranskat)abstract Two recently discovered short-period comets (P/1997 T3 (Lagerkvist-Carsenty) and P/1998 U3 (Jager)) were found, by means of numerical integrations, to have recently encountered Saturn, leading to drastic orbital changes. In both cases the orbit was transf
20.	Lagerkvist, CI, et al. (författare) UESAC - The Uppsala-ESO survey of asteroids and comets 1996 Ingår i: EARTH MOON AND PLANETS. - : KLUWER ACADEMIC PUBL. - 0167-9295. ; 72:1-3, s. 267-274 Tidskriftsartikel (refereegranskat)abstract The Uppsala-ESO Survey of Asteroids and Comets was undertaken to find previously undetected comets in the vicinity of Jupiter. Over 15000 positions of moving objects have been detected on 74 plates obtained from the European Southern Observatory in Chile
21.	Lindgren, T, et al. (författare) Searching for comets encountering Jupiter. Second campaign observations and further constraints on the size of the Jupiter family population 1996 Ingår i: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - : EDITIONS PHYSIQUE. - 0365-0138. ; 118:2, s. 293-301 Tidskriftsartikel (refereegranskat)abstract The results from the second campaign of the search for comets in the vicinity of Jupiter are presented. As in the previous campaign, we find no comets. This result is used to calculate upper limits on the size of the Jupiter family population of comets. T
22.	Magnusson, P, et al. (författare) Observations of distant Solar System bodies 1998 Ingår i: ASTRONOMISCHE NACHRICHTEN. - : WILEY-V C H VERLAG GMBH. - 0004-6337. ; 319:4, s. 251-255 Tidskriftsartikel (refereegranskat)abstract Multicolour VRI photometry and astrometry of one Centaur and seven Edgeworth-Kuiper objects were obtained. One object, 1994 JQ(1) may be as red as 5145 Pholus, the reddest minor planet previously known, The Centaur 1995 DW2 has more moderate colour indice
23.	Mottola, S, et al. (författare) The slow rotation of 253 Mathilde 1995 Ingår i: PLANETARY AND SPACE SCIENCE. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0032-0633. ; 43:12, s. 1609-1613 Tidskriftsartikel (refereegranskat)abstract CCD photometry of the NEAR mission fly-by target 253 Mathilde is presented. Measurements taken during 52 nights of observations, from February to June 1995, allow a rotation period of 17.406 +/- 0.010 days and a lightcurve amplitude of 0.45 +/- 0.02 mag t
24.	Piironen, J, et al. (författare) Physical studies of asteroids .31. Asteroid photometric observations with the Carlsberg Automatic Meridian Circle 1997 Ingår i: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - : EDITIONS PHYSIQUE. - 0365-0138. ; 121:3, s. 489-497 Tidskriftsartikel (refereegranskat)abstract Photometric observations of 74 asteroids obtained with the Carlsberg Automatic Meridian Circle between January 1990 and December 1993 are presented. The data from individual asteroid apparitions have been fitted by phase curves based on the standard HG ma
25.	Piironen, J, et al. (författare) Physical studies of asteroids - XXXII. Rotation periods and UBVRI-colours for selected asteroids 1998 Ingår i: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - : E D P SCIENCES. - 0365-0138. ; 128:3, s. 525-540 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We present lightcurves of selected asteroids. Most of the asteroids were included to obtain refined spin periods. Enhanced periods were determined for 11 Parthenope, 306 Unitas and 372 Palma. We confirmed the spin periods of 8 Flora, 13 Egeria, 71 Niobe,

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