1,726,000 research outputs found

    Low-frequency observations of NGC 4631 and NGC 3079

    No full text
    LOFAR HBA-Daten von NGC 4631 und NGC 3079 werden gezeigt und mit Fokus auf Radiohalos analysiert. Die integrierten Flußdichten von NGC 4631 und NGC 3079 betragen jeweils 4.5±0.4 Jy und 3.9±\pm0.4 Jy. Die Magnetfelder beider Galaxien werden zu ca. 15μ\muG in der Scheibe und 8–9μ\muG im Halo berechnet. Anzeichen für eine Wiederbeschleunigung kosmischer Strahlungsteilchen wurden in der östlichen Superbubble von NGC 3079 gefunden. Es ergeben sich Skalenhöhen von 3.50±\pm0.16 kpc im Norden und 2.22±\pm0.04 kpc im Süden (NGC 4631) und 6±\pm11 kpc (NGC 3079). Der Teilchentransport erfolgt advektiv. XMM-Archivdaten beider Galaxien werden präsentiert. NGC 4631 zeigt einen asymmetrischen Röntgenhalo. Der südliche Halo ist wesentlich dichter. Zusammen mit den unterschiedlichen Skalenhöhen deutet dies darauf hin, dass der Südhalo von NGC 4631 komprimiert wird. Der Röntgenhalo von NGC 3079 ist extrem groß und X-förmig, was ebenfalls einen Galaktischen Wind erfordert

    Block Card 4631 Shadowood Lane

    No full text
    This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 4631 Shadowood Lane (Toledo, Ohio) | Dwelling | Glendale Gardens (Toledo, Ohio) | South Toledo Area (Toledo, Ohio

    Block Card 4631 282nd Street

    No full text
    This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Dwelling | 4631 282nd Street (Toledo, Ohio) | Cape Cod Style | Parkview Addition (Toledo, Ohio) | Point Place (Toledo, Ohio) | North Toledo Area (Toledo, Ohio

    Block Card 4631 Manorwood Road

    No full text
    This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Dwelling (Toledo, Ohio) | Side gabled | Homeville Subdivision (Toledo, Ohio) | Willys Park area (Toledo, Ohio) | West Toledo (Toledo, Ohio) | 4631 Manorwood Road (Toledo, Ohio) | Folk Hous

    Linked collectors and determiners for: HAMAB - Herbário Amapaense.

    No full text
    Natural history specimen data linked to collectors and determiners held within, "HAMAB - Herbário Amapaense". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/355179f1-4631-4ebc-b50d-d55361f8c465">https://bionomia.net/dataset/355179f1-4631-4ebc-b50d-d55361f8c465</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/355179f1-4631-4ebc-b50d-d55361f8c465">https://gbif.org/dataset/355179f1-4631-4ebc-b50d-d55361f8c465</a>. Formatted as a Frictionless Data package

    2 e mappe-monde [cartographic material] /

    No full text
    Double hemispherical map of the world.; Rex Nan Kivell Collection Map NK 4631

    Linked collectors and determiners for: HAMAB - Herbário Amapaense.

    No full text
    Natural history specimen data linked to collectors and determiners held within, "HAMAB - Herbário Amapaense". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/355179f1-4631-4ebc-b50d-d55361f8c465">https://bionomia.net/dataset/355179f1-4631-4ebc-b50d-d55361f8c465</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/355179f1-4631-4ebc-b50d-d55361f8c465">https://gbif.org/dataset/355179f1-4631-4ebc-b50d-d55361f8c465</a>. Formatted as a Frictionless Data package

    Linked collectors and determiners for: A New Species Of Diploperla Needham And Claassen (Plecoptera: Perlodidae) From North Carolina And Virginia.

    No full text
    Natural history specimen data linked to collectors and determiners held within, "A New Species Of Diploperla Needham And Claassen (Plecoptera: Perlodidae) From North Carolina And Virginia". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/99959baa-aaf6-4631-b65e-3d984c9e85ca">https://bionomia.net/dataset/99959baa-aaf6-4631-b65e-3d984c9e85ca</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/99959baa-aaf6-4631-b65e-3d984c9e85ca">https://gbif.org/dataset/99959baa-aaf6-4631-b65e-3d984c9e85ca</a>. Formatted as a Frictionless Data package

    Atomic hydrogen in the disturbed edge-on galaxy NGC 4631

    Get PDF
    We present WSRT HI observations of the nearby, disturbed, edge-on galaxy NGC 4631. A low-resolution (45 in. x 87 in.) map shows previously unknown tidal debris at large distances from the plane, and two dwarf companions. A high resolution (12 in. x 22 in.) map reveals a very disturbed gas layer in NGC 4631, with a wealth of small-scale structure. The most striking discovery is a supershell in the eastern half of the disk with a diameter of about 3 kpc, a mass of approximately 10 exp 8 solar mass and a tentative expansion velocity of 45 km/s. If the expansion is real, the energy which must have been injected by supernovae to explain the shell's current parameters is roughly 4 x 10(exp 55) ergs. Such a high energy requirement suggests an alternative formation mechanism, such as a collision with a small companion
    corecore