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Ca II Activity and Rotation in FK Evolved Stars
A&A manuscript no. ASTRONOMY (will be inserted by hand later) AND Your thesaurus codes are: 06 (08.03.3 08.01.2 08.18.1 08.05.3 10.15.2) ASTROPHYSICS Ca II activity and rotation in F-K evolved stars,⋆ L. Pasquini1, J.R. de Medeiros2, and L. Girardi3,4 1 European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching bei M¨unchen email: [email protected] 2 Departamento de F´isica, Universidade Federal do Rio Grande do Norte, 59072-970, Natal, RN, Brazil email: [email protected] 3 Max-Planck-Institut f¨ur Astrophysik, Karl-Schwarzschild-Strasse 1, 85748 Garching bei M¨unchen 4 Present address: Dipartimento di Astronomia, Vicolo dell’ Osservatorio 5, I-35122 Padova, Italy Received : Accepted Abstract. Ca II H and K high resolution observations tionary track. For each range of masses activity can simply for 60 evolved stars in the field and in 5 open clusters be expressed as a function of only one parameter: either α are presented. From these spectra chromospheric fluxes the Teff or the angular rotation Ω, with laws F’k ∼ Ω , are derived, and a homogeneous sample of more than because angular velocity decreases with effective temper- 100 giants is built adding data from the literature. In ature along an evolutionary track. addition, for most stars, rotational velocities were de- By using the evolutionary tracks and the observed rived from CORAVEL observations. By comparing chro- Vsini we investigate the evolution of the angular momen- mospheric emission in the cluster stars we confirm the tum for evolved stars in the range 1-5 M⊙. -
Section 3.6 Selected Stars from the Hipparcos
Section 3.6 Selected Stars from the Hipparcos Catalogue 481 3.6. Selected Stars from the Hipparcos Catalogue In this section certain key results from the Hipparcos Catalogue are presented for various sets of stars selected according to a number of criteria. Table 3.6.1 lists results for the 150 stars closest to the Sun, as deduced from the Hipparcos parallaxes. No criterion was applied to the precision of the individual parallax determinations. The entries in the table are sorted by decreasing parallax (increasing distance). Table 3.6.2 gives the results for the 150 stars with the largest total proper motions in the Hipparcos Catalogue, again without further selection on precision. Table 3.6.3 gives the results for the 150 stars with the largest total transverse velocity, as deduced from the Hipparcos proper motions and parallaxes. In the latter table, only stars with relative distance precision σπ /π < 0.1 were included. The entries in these tables are sorted by decreasing total proper motion and total transverse velocity, respectively. For Table 3.6.4, the table with 150 stars with the highest absolute luminosity, the se- lection was more delicate. Although Hipparcos has determined for each entry at least a lower limit for the distance, and consequently for the luminosity, the inclusion of stars with only such a lower limit in the table was not considered meaningful. The stars in the table meet the two following criteria: (i) relative distance precision σπ /π < 0.3; (ii) ab- solute magnitude MV when computed with the 2-σ lower distance limit 1/(π + 2σπ ) smaller than −2 mag. -
1970Aj 75. . 602H the Astronomical Journal
602H . 75. THE ASTRONOMICAL JOURNAL VOLUME 75, NUMBER 5 JUNE 19 70 The Space Distribution and Kinematics of Supergiants 1970AJ Roberta M. Humphreys *f University of Michigan, Ann Arbor, Michigan (Received 15 January 1970; revised 1 April 1970) The distribution and kinematics of the supergiants of all spectral types are investigated with special emphasis on the correlation of these young stars and the interstellar gas. The stars used for this study are included as a catalogue of supergiants. Sixty percent of these supergiants occur in stellar groups. Least- squares solutions for the Galactic rotation constants yield 14 km sec-1 kpc-1 for Oort’s constant and a meaningful result for the second-order coefficient of —0.6 km sec-1 kpc-2. A detailed comparison of the stellar and gas velocities in the same regions shows good agreement, and these luminous stars occur in relatively dense gas. The velocity residuals for the stars also indicate noncircular group motions. In the Carina-Centaurus region, systematic motions of 10 km/sec were found between the two sides of the arm in agreement with Lin’s density-wave theory. The velocity residuals in the Perseus arm may also be due in part to these shearing motions. I. INTRODUCTION II. THE CATALOGUE OF SUPERGIANTS SINCE the pioneering work of Morgan et al. (1952) The observational data required for this study were on the distances of Galactic H 11 regions, many largely obtained from the literature. Use of a card file investigators have studied the space distribution of compiled by Dr. W. P. Bidelman was very helpful in various Population I objects, the optical tracers of this regard. -
Redox DAS Artist List for Period: 01.08.2017
Page: 1 Redox D.A.S. Artist List for period: 01.08.2017 - 31.08.2017 Date time: Number: Title: Artist: Publisher Lang: 01.08.2017 00:02:09 HD 04463 BOBBY BROWN FRANK ZAPPA ANG 01.08.2017 00:04:55 HD 55594 LJUBEZEN HLADNEGA DEKLETA THE STICKY LICKS SLO 01.08.2017 00:09:59 HD 46532 PARTY ALL NIGHT (SLEEP ALL DAY) [ALBUMSEAN KINGSTON VERSION] ANG 01.08.2017 00:13:47 HD 40707 FLAME TREES COLD CHISEL ANG 01.08.2017 00:18:07 HD 52793 TUDI TI A-NI-TA SLO 01.08.2017 00:21:11 HD 42017 UNANSWERED PRAYERS GARTH BROOKS ANG 01.08.2017 00:24:43 HD 34818 LIFTED LIGHTHOUSE FAMILY ANG 01.08.2017 00:28:48 HD 10759 EMANUELLE MAGNIFICO SLO 01.08.2017 00:33:33 HD 16344 DO SOMETHIN' BRITNEY SPEARS ANG 01.08.2017 00:37:01 HD 36333 PUMPKIN SOUP KATE NASH ANG 01.08.2017 00:40:00 HD 52816 V RITMU SANJ KATRINAS SLO 01.08.2017 00:44:06 HD 36201 MILLION FACES PAOLO NUTINI ANG 01.08.2017 00:47:44 HD 58724 BREATHE (FEAT NEEV) SEEB ANG 01.08.2017 00:51:30 HD 12353 PRID K MEN PETER LOVSIN & VITEZI OM'A SLO 01.08.2017 00:55:11 HD 10793 EVERY BREATH YOU TAKE FAME ACADEMY ANG 01.08.2017 00:59:03 HD 42719 UNTIL I DIE SEPTEMBER ANG 01.08.2017 01:02:43 HD 44564 BREZ OBRAZA REBEKA & TRKAJ SLO 01.08.2017 01:05:54 HD 25447 QUANDO, QUANDO, QUANDO MICHAEL BUBLE FT NELLY FURTADO ANG 01.08.2017 01:10:43 HD 54865 GIVING ME AWAY BETTY WHO ANG 01.08.2017 01:14:39 HD 21353 HELENA FOLKROLA SLO 01.08.2017 01:17:57 HD 02753 DANCE (WITH YOU) LEMAR ANG 01.08.2017 01:21:27 HD 56725 DON'T WE BELONG IN LOVE STEPHANIE WINSLOW ANG 01.08.2017 01:23:43 HD 42913 HALO DAN D SLO 01.08.2017 01:27:10 HD 52736 THE WORLD IS YOURS JUSTIN'S CASE ANG 01.08.2017 01:30:59 HD 27349 LIVE YOUR LIFE BE FREE BELINDA CARLISLE ANG 01.08.2017 01:35:11 HD 50937 TINA MANCA SPIK SLO 01.08.2017 01:38:11 HD 43429 BELLE OF THE BOULEVARD DASHBOARD CONFESSIONAL ANG 01.08.2017 01:41:38 HD 13655 OBVIOUS WESTLIFE ANG 01.08.2017 01:45:02 HD 52083 SLADOLED NE ME JUGAT SLO 01.08.2017 01:48:29 HD 53183 BROTHER LOUIE MIX '98 MODERN TALKING FEAT. -
Redox DAS Artist List for Period: 01.01.2017
Page: 1 Redox D.A.S. Artist List for period: 01.01.2017 - 31.01.2017 Date time: Number: Title: Artist: Publisher Lang: 01.01.2017 00:03:24 HD 01485 ZA VEDNO MLAD TOMAZ DOMICELJ SLO 01.01.2017 00:08:27 HD 00933 MARIE, NE PISI PESMI VEC HAZARD SLO 01.01.2017 00:11:29 HD 01625 TI AMO FOREVER DA FAMILY OSTALO 01.01.2017 00:15:24 HD 43110 ME HE DE COMER ESA TUNA ALBERTO GREGORIC SPA 01.01.2017 00:18:11 HD 33239 IF I HAD A HAMMER TRINI LOPEZ ANG 01.01.2017 00:21:06 HD 41167 MOJE SONCE SI TI ALFI NIPIC SLO 01.01.2017 00:25:09 HD 04211 TEQUILA SUNRISE EAGLES ANG 01.01.2017 00:28:20 HD 03607 HUNGRY HEART BRUCE SPRINGSTEEN ANG 01.01.2017 00:31:24 HD 28876 DANCIN' AARON SMITH FEAT. LUVLI ANG 01.01.2017 00:34:58 HD 59190 DON'T BE SO SHY IMANY FEAT. FILATOV & KARAS ANG 01.01.2017 00:38:05 HD 15016 SOLZE IN SMEH ROK 'N' BAND SLO 01.01.2017 00:41:40 HD 26959 COME ON OVER CHRISTINA AGUILERA ANG 01.01.2017 00:45:01 HD 58629 ALLE ALLE KINGSTON SLO 01.01.2017 00:48:39 HD 15453 SHOOTING STAR DEEPEST BLUE ANG 01.01.2017 00:52:48 HD 17917 I'VE BEEN IN LOVE BEFORE CUTTING CREW ANG 01.01.2017 00:57:42 HD 28970 NEMAJ DA IDES MOJOM ULICOM RIBLJA CORBA HRV 01.01.2017 01:00:15 HD 59511 STARI KOMADI VLADO KRESLIN SLO 01.01.2017 01:05:02 HD 15832 YOU GOT IT ROY ORBISON ANG 01.01.2017 01:08:31 HD 28970 NEMAJ DA IDES MOJOM ULICOM RIBLJA CORBA HRV 01.01.2017 01:11:04 HD 13469 KO PRIDE NOC BAZAR SLO 01.01.2017 01:14:31 HD 01886 ONE NIGHT IN BANGKOK A TEENS ANG 01.01.2017 01:17:58 HD 36970 NEVER BE THE SAME AGAIN MELANIE C. -
Microfilms International
IM w sity Microfilms International V lalj* 1.0 Itt _ to. y£ 22 £ b£ 2.0 1.1 UL 11.25 111 1.4 1.6 MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS STANDARD REFERENCE MATERIAL 1010a (ANSI and ISO TEST CHART No. 2) University Microfilms Inc. 300 N. Zeeb Road, Ann Arbor, MI 48106 INFORMATION TO USERS This reproduction was made from a copy of a manuscript sent to us for publication and microfilming. While the most advanced technology has been used to pho tograph and reproduce this manuscript, the quality of the reproduction is heavily dependent upon the quality of the material submitted. Pages in any manuscript may have indistinct print. In all cases the best available copy has been filmed. The following explanation of techniques is provided to help clarify notations which may appear on this reproduction. 1. Manuscripts may not always be complete. When it is not possible to obtain missing pages, a note appears to indicate this. 2. When copyrighted materials are removed from the manuscript, a note ap pears to indicate this. 3. Oversize materials (maps, drawings, and charts) are photographed by sec tioning the original, beginning at the upper left hand comer and continu ing from left to right in equal sections with small overlaps. Each oversize page is also filmed as one exposure and is available, for an additional charge, as a standard 35mm slide or in black and white paper format.4 4. Most photographs reproduce acceptably on positive microfilm or micro fiche but lack clarify on xerographic copies made from the microfilm. -
1994Aj 107.2184E the Astronomical Journal
THE ASTRONOMICAL JOURNAL VOLUME 107, NUMBER 6 JUNE 1994 107.2184E PHOTOMETRY OF F-K TYPE BRIGHT GIANTS AND SUPERGIANTS. III. THE LUMINOSITY, REDDENING, AND HEAVY ELEMENT ABUNDANCE OF GK STARS Olin J. Eggen 1994AJ Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatories,1 Casilla 603, La Serena, Chile Received 1993 December 7; revised 1994 January 31 ABSTRACT The reddening, luminosity, and heavy element abundance of 250 bright giants and supergiants of type GK are discussed on the basis of 4 color, DDO, RI, and Geneva photometry. Bright giants of type GK with age greater than 5X108 yr, and of type GO/3 with age greater than 2X108 yr, are very scarce in the solar neighborhood. The median space motion vectors of the bright giants and supergiants with well determined space motions are (£/,V,JV) = (+10.6,—13.2,-7.7)±(12.3,8.8,8.8) km/s. The index for 4 color photometry, when corrected for luminosity (gravity) effects, is sensitive to heavy element abundance in the F type stars but not in those of GK type. The CN index reflects the heavy element abundance of the GK stars but may not be reliable for those of type GO/3. The available spectroscopic determinations of [Fe/H] give mixed results with the two largest samples [McWilliam, ApJS, 74,1075 (1990); Brown et ö/., ApJS, 71, 293 (1989)] being internally consistent but with a large zero-point difference. There is a similar zero-point shift in the peak frequency of the photometrically determined values of P[Fe/H] for the F type and for the GK type stars. -
Additions to Astronomy-OP 2017
1 Additions to Astronomy-OP 2017 Collection edited by: Jack Straton Content authors: Jack Straton and OpenStax Astronomy Online: <https://legacy.cnx.org/content/col12135/1.4> This selection and arrangement of content as a collection is copyrighted by Jack Straton. Creative Commons Attribution License 4.0 http://creativecommons.org/licenses/by/4.0/ Collection structure revised: 2017/04/04 PDF Generated: 2017/04/04 12:07:52 For copyright and attribution information for the modules contained in this collection, see the "Attributions" section at the end of the collection. 2 This OpenStax book is available for free at https://legacy.cnx.org/content/col12135/1.4 TABLE OF CONTENTS 1 Derived copy of Using Spectra to Measure Stellar Radius, 5 Composition, and Motion 1.1 Learning Objectives 5 1.2 Clues to the Size of a Star 5 1.3 Abundances of the Elements 6 1.4 Radial Velocity 7 1.5 Proper Motion 8 1.6 Rotation 10 1.7 Key Concepts and Summary 13 1.8 For Further Exploration 13 1.9 Collaborative Group Activities 14 1.10 Review Questions 15 1.11 Thought Questions 16 1.12 Figuring for Yourself 18 2 Derived copy of The Brightness of Stars 21 2.1 Learning Objectives 21 2.2 Luminosity 21 2.3 Apparent Brightness 21 2.4 The Magnitude Scale 22 2.5 Other Units of Brightness 26 2.6 Key Concepts and Summary 27 3 addition to p 678 new figs 29 3.1 The Cosmological Distance Ladder 30 4 Derived copy of A Conclusion and a Beginning with added 37 exercises 4.1 For Further Exploration 38 Index 41 This OpenStax book is available for free at https://legacy.cnx.org/content/col12135/1.4 -
Redox DAS Artist List for Period: 01.04.2017
Page: 1 Redox D.A.S. Artist List for period: 01.04.2017 - 30.04.2017 Date time: Number: Title: Artist: Publisher Lang: 01.04.2017 00:00:21 HD 25915 ROCK AND ROLL NEVER FORGETS BOB SEGER & THE SILVER BAND ANG 01.04.2017 00:04:09 HD 57297 MOJE MUZE MI2 SLO 01.04.2017 00:07:33 HD 57327 QUEEN OF PEACE FLORENCE + THE MACHINE ANG 01.04.2017 00:12:16 HD 58137 DOTIK JE DOVOLJ GRIZL SLO 01.04.2017 00:16:14 HD 56263 LEGENDARY LOVERS KATY PERRY ANG 01.04.2017 00:20:09 HD 29116 VZEMI MI VSE PANDA SLO 01.04.2017 00:23:10 HD 57889 IN2 WSTRN ANG 01.04.2017 00:27:06 HD 58278 BLUE AND RED MANUELLA SLO 01.04.2017 00:30:02 HD 57802 LOST AND FOUND ELLIE GOULDING ANG 01.04.2017 00:33:42 HD 56867 PHOTOGRAPH ED SHEERAN ANG 01.04.2017 00:37:57 HD 32986 NEKAJ LET AVTOMOBILI SLO 01.04.2017 00:42:11 HD 27456 ONE LAST BREATH CREED ANG 01.04.2017 00:46:02 HD 25910 TOMORROW BOB SEGER & THE SILVER BAND ANG 01.04.2017 00:49:47 HD 58255 NAVADEN OBCAN GUSTI SLO 01.04.2017 00:53:00 HD 57765 DRINK YOU AWAY JUSTIN TIMBERLAKE ANG 01.04.2017 00:56:32 HD 55763 LOUDER THAN WORDS PINK FLOYD ANG 01.04.2017 01:02:15 HD 58269 CRNO BEL RAIVEN SLO 01.04.2017 01:05:23 HD 18801 LET THE CHILDREN PLAY SANTANA ANG 01.04.2017 01:08:01 HD 31450 S TABO RATTLESNAKE SLO 01.04.2017 01:12:09 HD 30032 U PLUS UR HAND PINK ANG 01.04.2017 01:15:39 HD 57459 NA POLJU ZLOMLJENIH BESED DRUSTVO MRTVIH PESNIKOV SLO 01.04.2017 01:20:02 HD 58200 OPHELIA THE LUMINEERS ANG 01.04.2017 01:22:35 HD 58207 I NEED YOU TONIGHT JAMES MORRISON ANG 01.04.2017 01:27:32 HD 56720 FLY AVRIL LAVIGNE ANG 01.04.2017 01:30:22