A SEARCH FOR l-C3H+ AND l-C3H IN Sgr B2(N), Sgr B2(OH), AND THE DARK CLOUD TMC-1

被引：30
|
作者：
McGuire, Brett A. [1 ]
Carroll, P. Brandon [1 ]
Loomis, Ryan A. [2 ]
Blake, Geoffrey A. [1 ,3 ]
Hollis, Jan M. [4 ]
Lovas, Frank J. [5 ]
Jewell, Philip R. [6 ]
Remijan, Anthony J. [6 ]
机构：
[1] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA
[2] Univ Virginia, Dept Chem, Charlottesville, VA 22904 USA
[3] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[5] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA
[6] Natl Radio Astron Observ, Charlottesville, VA 22903 USA
来源：
ASTROPHYSICAL JOURNAL | 2013年 / 774卷 / 01期
关键词：
astrochemistry; ISM: clouds; ISM: individual objects (Sagittarius B2(N); Sagittarius B2(OH); TMC-1); ISM: molecules; LABORATORY MICROWAVE-SPECTRUM; LINE SURVEY; ASTRONOMICAL IDENTIFICATION; VIBRATIONAL FREQUENCIES; SPECTROSCOPIC CONSTANTS; PRIMOS SURVEY; IRC &10216; INTERSTELLAR; ION; GHZ;
D O I：
10.1088/0004-637X/774/1/56
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Pety et al. recently reported the detection of several transitions of an unknown carrier in the Horsehead PDR and attribute them to l-C3H+. Here, we have tested the predictive power of their fit by searching for, and identifying, the previously unobserved J = 1-0 and J = 2-1 transitions of the unknown carrier (B11244) toward Sgr B2(N) in data from the publicly available PRIMOS project. Also presented here are observations of the J = 6-5 and J = 7-6 transitions toward Sgr B2(N) and Sgr B2(OH) using the Barry E. Turner Legacy Survey and results from the Kaifu et al. survey of TMC-1. We calculate an excitation temperature and column density of B11244 of similar to 10 K and similar to 10(13) cm(-2) in Sgr B2(N) and similar to 79 K with an upper limit of <= 1.5 x 10(13) cm(-2) in Sgr B2(OH) and find trace evidence for the cation's presence in TMC-1. Finally, we present spectra of the neutral species in both Sgr B2(N) and TMC-1, and comment on the robustness of the assignment of the detected signals to l-C3H+.
引用
收藏
页数：7
相关论文
共 50 条
  • [41] Laboratory rotational spectroscopy of isotopic acetone, CH313C(O)CH3 and 13CH3C(O)CH3, and astronomical search in Sagittarius B2(N2)
    Ordu, Matthias H.
    Zingsheim, Oliver
    Belloche, Arnaud
    Lewen, Frank
    Garrod, Robin T.
    Menten, Karl M.
    Schlemmer, Stephan
    Mueller, Holger S. P.
    ASTRONOMY & ASTROPHYSICS, 2019, 629
  • [42] Upper limits to interstellar NH+ and para-NH2- abundances Herschel-HIFI observations towards Sgr B2 (M) and G10.6-0.4 (W31C)
    Persson, C. M.
    Hajigholi, M.
    Hassel, G. E.
    Olofsson, A. O. H.
    Black, J. H.
    Herbst, E.
    Mueller, H. S. P.
    Cernicharo, J.
    Wirstrom, E. S.
    Olberg, M.
    Hjalmarson, A.
    Lis, D. C.
    Cuppen, H. M.
    Gerin, M.
    Menten, K. M.
    ASTRONOMY & ASTROPHYSICS, 2014, 567
  • [43] Dense cores in dark clouds.: XI.: A survey for N2H+, C3H2, and CCS
    Benson, PJ
    Caselli, P
    Myers, PC
    ASTROPHYSICAL JOURNAL, 1998, 506 (02) : 743 - 757
  • [44] The quest for complex molecules in space: laboratory spectroscopy of n-butyl cyanide, n-C4H9CN, in the millimeter wave region and its astronomical search in Sagittarius B2(N)
    Ordu, M. H.
    Mueller, H. S. P.
    Walters, A.
    Nunez, M.
    Lewen, F.
    Belloche, A.
    Menten, K. M.
    Schlemmer, S.
    ASTRONOMY & ASTROPHYSICS, 2012, 541
  • [45] Chemical evolution of the HC3N and N2H+ molecules in dense cores of the Vela C giant molecular cloud complex
    Ohashi, Satoshi
    Tatematsu, Ken'ichi
    Fujii, Kosuke
    Sanhueza, Patricio
    Quang Nguyen Luong
    Choi, Minho
    Hirota, Tomoya
    Mizuno, Norikazu
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2016, 68 (01)
  • [46] Multiline observations of CH3OH, c-C3H2, and HNCO toward L1544 Dissecting the core structure with chemical differentiation
    Lin, Y.
    Spezzano, S.
    Sipila, O.
    Vasyunin, A.
    Caselli, P.
    ASTRONOMY & ASTROPHYSICS, 2022, 665
  • [47] A critical examination of the l-C3H2- spectrum and the diffuse interstellar bands
    McCall, BJ
    Oka, T
    Thorburn, J
    Hobbs, LM
    York, DG
    ASTROPHYSICAL JOURNAL, 2002, 567 (02) : L145 - L148
  • [48] Deuteration of c-C3H2 towards the pre-stellar core L1544
    Giers, K.
    Spezzano, S.
    Alves, F.
    Caselli, P.
    Redaelli, E.
    Sipilae, O.
    Ben Khalifa, M.
    Wiesenfeld, L.
    Brunken, S.
    Bizzocchi, L.
    ASTRONOMY & ASTROPHYSICS, 2022, 664
  • [49] BROAD N2H+ EMISSION TOWARD THE PROTOSTELLAR SHOCK L1157-B1
    Codella, C.
    Viti, S.
    Ceccarelli, C.
    Lefloch, B.
    Benedettini, M.
    Busquet, G.
    Caselli, P.
    Fontani, F.
    Gomez-Ruiz, A.
    Podio, L.
    Vasta, M.
    ASTROPHYSICAL JOURNAL, 2013, 776 (01)
  • [50] Kinetic studies of aquation for oxalate in [Cr(C2O4)2(L-L)]- and [Cr(C2O4)(L-L)(H2O)2]+ induced by Fe3+
    Jacewicz, Dagmara
    Dabrowska, Aleksandra
    Chmurzynski, Lech
    JOURNAL OF COORDINATION CHEMISTRY, 2011, 64 (16) : 2834 - 2847
12345