Does the IC 342/Maffei Galaxy Group Really Exist?

被引:10
|
作者
Tikhonov, N. A. [1 ]
Galazutdinova, O. A. [1 ]
机构
[1] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia
基金
俄罗斯科学基金会;
关键词
galaxies: groups: individual: IC 342/Maffei; galaxies:; individual:; IC; 342; Maffei; 1; 2; RED GIANT BRANCH; DISTANCE INDICATOR; RESOLVED GALAXIES; LOCAL GROUP; MAFFEI; EXTINCTION; IC-342; TIP; M32;
D O I
10.1134/S1990341318030021
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Based on the archival images of the Hubble Space Telescope we performed stellar photometry in the infrared and visible ranges in the fields of the Maffei 1, Maffei 2 and IC 342 galaxies, the light from which undergoes strong absorption by the interstellar gas and dust clouds of our Galaxy. The resulting Hertzsprung-Russell diagrams reveal red giant branches and the positions of their upper boundaries and color indices. A comparison of color indices of the red giant branch with similar indices in the galaxies not experiencing extinction made it possible to determine the amount of extinction in Maffei 1, Maffei 2 and IC 342 as follows: A(V) = 3.06, 3.65 and 0.95, respectively. We found that these galaxies are located at the distances of 6.6, 6.8 and 3.9 Mpc. The values obtained substantially differ from the distances to these same galaxies (3.4, 3.5 and 3.5 Mpc), measured by Wu et al. in 2014 using the same images. The measurements we carried out show that Maffei 1 and Maffei 2 do not form a single group with the IC 342 galaxy, as previously thought.
引用
收藏
页码:279 / 292
页数:14
相关论文
共 50 条
  • [1] Does the IC 342/Maffei Galaxy Group Really Exist?
    N. A. Tikhonov
    O. A. Galazutdinova
    Astrophysical Bulletin, 2018, 73 : 279 - 292
  • [2] The IC 342/Maffei Group revealed
    Buta, RJ
    McCall, ML
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1999, 124 (01): : 33 - 93
  • [3] The IC 342/Maffei group of galaxies
    Huchtmeier, WK
    Westpfahl, DJ
    Karachentsev, ID
    Karachentseva, VE
    GAS AND GALAXY EVOLUTION: A CONFERENCE IN HONOR OF THE 20TH ANNIVERSARY OF THE VLA, 2001, 240 : 589 - 591
  • [4] The extinction and distance of Maffei 2 and a new view of the IC 342/Maffei group
    Fingerhut, Robin L.
    Lee, Henry
    McCall, Marshall L.
    Richer, Michael G.
    ASTROPHYSICAL JOURNAL, 2007, 655 (02): : 814 - 830
  • [5] New dwarf galaxies in the IC342/Maffei group
    Huchtmeier, WK
    Karachentsev, ID
    Karachentseva, VE
    SMALL GALAXY GROUPS, 2000, 209 : 158 - 162
  • [6] INFRARED TIP OF THE RED GIANT BRANCH AND DISTANCES TO THE MAFFEI/IC 342 GROUP
    Wu, Po-Feng
    Tully, R. Brent
    Rizzi, Luca
    Dolphin, Andrew E.
    Jacobs, Bradley A.
    Karachentsev, Igor D.
    ASTRONOMICAL JOURNAL, 2014, 148 (01):
  • [7] IC-342 MAFFEI-GROUP OF GALAXIES AND DISTANCES FOR 2 OF ITS MEMBERS
    KRISMER, M
    TULLY, RB
    GIOIA, IM
    ASTRONOMICAL JOURNAL, 1995, 110 (04): : 1584 - &
  • [8] Distance to the galaxy IC 342
    Tikhonov, N. A.
    Galazutdinova, O. A.
    ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2010, 36 (03): : 167 - 174
  • [9] Distance to the galaxy IC 342
    N. A. Tikhonov
    O. A. Galazutdinova
    Astronomy Letters, 2010, 36 : 167 - 174
  • [10] 2 NEW POSSIBLE MEMBERS OF THE IC-342-MAFFEI-1/2 GROUP OF GALAXIES
    HUCHTMEIER, WK
    LERCHER, G
    SEEBERGER, R
    SAURER, W
    WEINBERGER, R
    ASTRONOMY & ASTROPHYSICS, 1995, 293 (01) : L33 - L36